WebSVN – Kolibri OS – Diff – /drivers/video/Intel-2D/gen6_render.c


/*
 * Copyright © 2006,2008,2011 Intel Corporation
 * Copyright © 2007 Red Hat, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 * Authors:
 *    Wang Zhenyu 
 *    Eric Anholt 
 *    Carl Worth 
 *    Keith Packard 
 *    Chris Wilson 
 *
 */
 
 
#include "sna.h"
#include "sna_reg.h"
#include "sna_render.h"
#include "sna_render_inline.h"
//#include "sna_video.h"
 
#include "brw/brw.h"
#include "gen6_render.h"
#include "gen4_source.h"
#include "gen4_vertex.h"
 
#define NO_COMPOSITE 0
#define NO_COMPOSITE_SPANS 0
#define NO_COPY 0
#define NO_COPY_BOXES 0
#define NO_FILL 0
#define NO_FILL_BOXES 0
#define NO_FILL_ONE 0
#define NO_FILL_CLEAR 0
 
#define NO_RING_SWITCH 0
#define PREFER_RENDER 0
 
#define USE_8_PIXEL_DISPATCH 1
#define USE_16_PIXEL_DISPATCH 1
#define USE_32_PIXEL_DISPATCH 0
 
#if !USE_8_PIXEL_DISPATCH && !USE_16_PIXEL_DISPATCH && !USE_32_PIXEL_DISPATCH
#error "Must select at least 8, 16 or 32 pixel dispatch"
#endif
 
#define GEN6_MAX_SIZE 8192
 
struct gt_info {
	const char *name;
	int max_vs_threads;
	int max_gs_threads;
	int max_wm_threads;
	struct {
		int size;
		int max_vs_entries;
		int max_gs_entries;
	} urb;
};
 
static const struct gt_info gt1_info = {
	.name = "Sandybridge (gen6, gt1)",
	.max_vs_threads = 24,
	.max_gs_threads = 21,
	.max_wm_threads = 40,
	.urb = { 32, 256, 256 },
};
 
static const struct gt_info gt2_info = {
	.name = "Sandybridge (gen6, gt2)",
	.max_vs_threads = 60,
	.max_gs_threads = 60,
	.max_wm_threads = 80,
	.urb = { 64, 256, 256 },
};
 
static const uint32_t ps_kernel_packed[][4] = {
#include "exa_wm_src_affine.g6b"
#include "exa_wm_src_sample_argb.g6b"
#include "exa_wm_yuv_rgb.g6b"
#include "exa_wm_write.g6b"
};
 
static const uint32_t ps_kernel_planar[][4] = {
#include "exa_wm_src_affine.g6b"
#include "exa_wm_src_sample_planar.g6b"
#include "exa_wm_yuv_rgb.g6b"
#include "exa_wm_write.g6b"
};
 
#define NOKERNEL(kernel_enum, func, ns) \
    [GEN6_WM_KERNEL_##kernel_enum] = {#kernel_enum, func, 0, ns}
#define KERNEL(kernel_enum, kernel, ns) \
    [GEN6_WM_KERNEL_##kernel_enum] = {#kernel_enum, kernel, sizeof(kernel), ns}
 
static const struct wm_kernel_info {
	const char *name;
	const void *data;
	unsigned int size;
	unsigned int num_surfaces;
} wm_kernels[] = {
	NOKERNEL(NOMASK, brw_wm_kernel__affine, 2),
	NOKERNEL(NOMASK_P, brw_wm_kernel__projective, 2),
 
	NOKERNEL(MASK, brw_wm_kernel__affine_mask, 3),
	NOKERNEL(MASK_P, brw_wm_kernel__projective_mask, 3),
 
	NOKERNEL(MASKCA, brw_wm_kernel__affine_mask_ca, 3),
	NOKERNEL(MASKCA_P, brw_wm_kernel__projective_mask_ca, 3),
 
	NOKERNEL(MASKSA, brw_wm_kernel__affine_mask_sa, 3),
	NOKERNEL(MASKSA_P, brw_wm_kernel__projective_mask_sa, 3),
 
	NOKERNEL(OPACITY, brw_wm_kernel__affine_opacity, 2),
	NOKERNEL(OPACITY_P, brw_wm_kernel__projective_opacity, 2),
 
	KERNEL(VIDEO_PLANAR, ps_kernel_planar, 7),
	KERNEL(VIDEO_PACKED, ps_kernel_packed, 2),
};
#undef KERNEL
 
static const struct blendinfo {
	bool src_alpha;
	uint32_t src_blend;
	uint32_t dst_blend;
} gen6_blend_op[] = {
	/* Clear */	{0, GEN6_BLENDFACTOR_ZERO, GEN6_BLENDFACTOR_ZERO},
	/* Src */	{0, GEN6_BLENDFACTOR_ONE, GEN6_BLENDFACTOR_ZERO},
	/* Dst */	{0, GEN6_BLENDFACTOR_ZERO, GEN6_BLENDFACTOR_ONE},
	/* Over */	{1, GEN6_BLENDFACTOR_ONE, GEN6_BLENDFACTOR_INV_SRC_ALPHA},
	/* OverReverse */ {0, GEN6_BLENDFACTOR_INV_DST_ALPHA, GEN6_BLENDFACTOR_ONE},
	/* In */	{0, GEN6_BLENDFACTOR_DST_ALPHA, GEN6_BLENDFACTOR_ZERO},
	/* InReverse */	{1, GEN6_BLENDFACTOR_ZERO, GEN6_BLENDFACTOR_SRC_ALPHA},
	/* Out */	{0, GEN6_BLENDFACTOR_INV_DST_ALPHA, GEN6_BLENDFACTOR_ZERO},
	/* OutReverse */ {1, GEN6_BLENDFACTOR_ZERO, GEN6_BLENDFACTOR_INV_SRC_ALPHA},
	/* Atop */	{1, GEN6_BLENDFACTOR_DST_ALPHA, GEN6_BLENDFACTOR_INV_SRC_ALPHA},
	/* AtopReverse */ {1, GEN6_BLENDFACTOR_INV_DST_ALPHA, GEN6_BLENDFACTOR_SRC_ALPHA},
	/* Xor */	{1, GEN6_BLENDFACTOR_INV_DST_ALPHA, GEN6_BLENDFACTOR_INV_SRC_ALPHA},
	/* Add */	{0, GEN6_BLENDFACTOR_ONE, GEN6_BLENDFACTOR_ONE},
};
 
/**
 * Highest-valued BLENDFACTOR used in gen6_blend_op.
 *
 * This leaves out GEN6_BLENDFACTOR_INV_DST_COLOR,
 * GEN6_BLENDFACTOR_INV_CONST_{COLOR,ALPHA},
 * GEN6_BLENDFACTOR_INV_SRC1_{COLOR,ALPHA}
 */
#define GEN6_BLENDFACTOR_COUNT (GEN6_BLENDFACTOR_INV_DST_ALPHA + 1)
 
#define GEN6_BLEND_STATE_PADDED_SIZE	ALIGN(sizeof(struct gen6_blend_state), 64)
 
#define BLEND_OFFSET(s, d) \
	(((s) * GEN6_BLENDFACTOR_COUNT + (d)) * GEN6_BLEND_STATE_PADDED_SIZE)
 
#define NO_BLEND BLEND_OFFSET(GEN6_BLENDFACTOR_ONE, GEN6_BLENDFACTOR_ZERO)
#define CLEAR BLEND_OFFSET(GEN6_BLENDFACTOR_ZERO, GEN6_BLENDFACTOR_ZERO)
 
#define SAMPLER_OFFSET(sf, se, mf, me) \
	(((((sf) * EXTEND_COUNT + (se)) * FILTER_COUNT + (mf)) * EXTEND_COUNT + (me) + 2) * 2 * sizeof(struct gen6_sampler_state))
 
#define VERTEX_2s2s 0
 
#define COPY_SAMPLER 0
#define COPY_VERTEX VERTEX_2s2s
#define COPY_FLAGS(a) GEN6_SET_FLAGS(COPY_SAMPLER, (a) == GXcopy ? NO_BLEND : CLEAR, GEN6_WM_KERNEL_NOMASK, COPY_VERTEX)
 
#define FILL_SAMPLER (2 * sizeof(struct gen6_sampler_state))
#define FILL_VERTEX VERTEX_2s2s
#define FILL_FLAGS(op, format) GEN6_SET_FLAGS(FILL_SAMPLER, gen6_get_blend((op), false, (format)), GEN6_WM_KERNEL_NOMASK, FILL_VERTEX)
#define FILL_FLAGS_NOBLEND GEN6_SET_FLAGS(FILL_SAMPLER, NO_BLEND, GEN6_WM_KERNEL_NOMASK, FILL_VERTEX)
 
#define GEN6_SAMPLER(f) (((f) >> 16) & 0xfff0)
#define GEN6_BLEND(f) (((f) >> 0) & 0xfff0)
#define GEN6_KERNEL(f) (((f) >> 16) & 0xf)
#define GEN6_VERTEX(f) (((f) >> 0) & 0xf)
#define GEN6_SET_FLAGS(S, B, K, V)  (((S) | (K)) << 16 | ((B) | (V)))
 
#define OUT_BATCH(v) batch_emit(sna, v)
#define OUT_VERTEX(x,y) vertex_emit_2s(sna, x,y)
#define OUT_VERTEX_F(v) vertex_emit(sna, v)
 
static inline bool too_large(int width, int height)
{
	return width > GEN6_MAX_SIZE || height > GEN6_MAX_SIZE;
}
 
static uint32_t gen6_get_blend(int op,
			       bool has_component_alpha,
			       uint32_t dst_format)
{
	uint32_t src, dst;
 
 
    src = GEN6_BLENDFACTOR_ONE; //gen6_blend_op[op].src_blend;
    dst = GEN6_BLENDFACTOR_INV_SRC_ALPHA; //gen6_blend_op[op].dst_blend;
 
//    dst = GEN6_BLENDFACTOR_ZERO; //gen6_blend_op[op].dst_blend;
 
#if 0
	/* If there's no dst alpha channel, adjust the blend op so that
	 * we'll treat it always as 1.
	 */
	if (PICT_FORMAT_A(dst_format) == 0) {
		if (src == GEN6_BLENDFACTOR_DST_ALPHA)
			src = GEN6_BLENDFACTOR_ONE;
		else if (src == GEN6_BLENDFACTOR_INV_DST_ALPHA)
			src = GEN6_BLENDFACTOR_ZERO;
	}
 
	/* If the source alpha is being used, then we should only be in a
	 * case where the source blend factor is 0, and the source blend
	 * value is the mask channels multiplied by the source picture's alpha.
	 */
	if (has_component_alpha && gen6_blend_op[op].src_alpha) {
		if (dst == GEN6_BLENDFACTOR_SRC_ALPHA)
			dst = GEN6_BLENDFACTOR_SRC_COLOR;
		else if (dst == GEN6_BLENDFACTOR_INV_SRC_ALPHA)
			dst = GEN6_BLENDFACTOR_INV_SRC_COLOR;
	}
 
	DBG(("blend op=%d, dst=%x [A=%d] => src=%d, dst=%d => offset=%x\n",
	     op, dst_format, PICT_FORMAT_A(dst_format),
	     src, dst, (int)BLEND_OFFSET(src, dst)));
#endif
 
	return BLEND_OFFSET(src, dst);
}
 
static uint32_t gen6_get_card_format(PictFormat format)
{
	switch (format) {
	default:
		return -1;
	case PICT_a8r8g8b8:
    return GEN6_SURFACEFORMAT_B8G8R8A8_UNORM;
	case PICT_x8r8g8b8:
		return GEN6_SURFACEFORMAT_B8G8R8X8_UNORM;
	case PICT_a8b8g8r8:
		return GEN6_SURFACEFORMAT_R8G8B8A8_UNORM;
	case PICT_x8b8g8r8:
		return GEN6_SURFACEFORMAT_R8G8B8X8_UNORM;
	case PICT_a2r10g10b10:
		return GEN6_SURFACEFORMAT_B10G10R10A2_UNORM;
	case PICT_x2r10g10b10:
		return GEN6_SURFACEFORMAT_B10G10R10X2_UNORM;
	case PICT_r8g8b8:
		return GEN6_SURFACEFORMAT_R8G8B8_UNORM;
	case PICT_r5g6b5:
		return GEN6_SURFACEFORMAT_B5G6R5_UNORM;
	case PICT_a1r5g5b5:
		return GEN6_SURFACEFORMAT_B5G5R5A1_UNORM;
	case PICT_a8:
		return GEN6_SURFACEFORMAT_A8_UNORM;
	case PICT_a4r4g4b4:
		return GEN6_SURFACEFORMAT_B4G4R4A4_UNORM;
	}
}
 
static uint32_t gen6_get_dest_format(PictFormat format)
{
    return GEN6_SURFACEFORMAT_B8G8R8A8_UNORM;
 
#if 0
 
	switch (format) {
	default:
		return -1;
	case PICT_a8r8g8b8:
	case PICT_x8r8g8b8:
		return GEN6_SURFACEFORMAT_B8G8R8A8_UNORM;
	case PICT_a8b8g8r8:
	case PICT_x8b8g8r8:
		return GEN6_SURFACEFORMAT_R8G8B8A8_UNORM;
	case PICT_a2r10g10b10:
	case PICT_x2r10g10b10:
		return GEN6_SURFACEFORMAT_B10G10R10A2_UNORM;
	case PICT_r5g6b5:
		return GEN6_SURFACEFORMAT_B5G6R5_UNORM;
	case PICT_x1r5g5b5:
	case PICT_a1r5g5b5:
		return GEN6_SURFACEFORMAT_B5G5R5A1_UNORM;
	case PICT_a8:
		return GEN6_SURFACEFORMAT_A8_UNORM;
	case PICT_a4r4g4b4:
	case PICT_x4r4g4b4:
		return GEN6_SURFACEFORMAT_B4G4R4A4_UNORM;
	}
#endif
 
}
 
#if 0
 
static bool gen6_check_dst_format(PictFormat format)
{
	if (gen6_get_dest_format(format) != -1)
		return true;
 
	DBG(("%s: unhandled format: %x\n", __FUNCTION__, (int)format));
	return false;
}
 
static bool gen6_check_format(uint32_t format)
{
	if (gen6_get_card_format(format) != -1)
		return true;
 
	DBG(("%s: unhandled format: %x\n", __FUNCTION__, (int)format));
		return false;
}
 
static uint32_t gen6_filter(uint32_t filter)
{
	switch (filter) {
	default:
		assert(0);
	case PictFilterNearest:
		return SAMPLER_FILTER_NEAREST;
	case PictFilterBilinear:
		return SAMPLER_FILTER_BILINEAR;
	}
}
 
static uint32_t gen6_check_filter(PicturePtr picture)
{
	switch (picture->filter) {
	case PictFilterNearest:
	case PictFilterBilinear:
		return true;
	default:
		return false;
	}
}
 
static uint32_t gen6_repeat(uint32_t repeat)
{
	switch (repeat) {
	default:
		assert(0);
	case RepeatNone:
		return SAMPLER_EXTEND_NONE;
	case RepeatNormal:
		return SAMPLER_EXTEND_REPEAT;
	case RepeatPad:
		return SAMPLER_EXTEND_PAD;
	case RepeatReflect:
		return SAMPLER_EXTEND_REFLECT;
	}
}
 
static bool gen6_check_repeat(PicturePtr picture)
{
	if (!picture->repeat)
		return true;
 
	switch (picture->repeatType) {
	case RepeatNone:
	case RepeatNormal:
	case RepeatPad:
	case RepeatReflect:
		return true;
	default:
		return false;
	}
}
#endif
 
static int
gen6_choose_composite_kernel(int op, bool has_mask, bool is_ca, bool is_affine)
{
	int base;
 
	if (has_mask) {
		if (is_ca) {
			if (gen6_blend_op[op].src_alpha)
				base = GEN6_WM_KERNEL_MASKSA;
			else
				base = GEN6_WM_KERNEL_MASKCA;
		} else
			base = GEN6_WM_KERNEL_MASK;
	} else
		base = GEN6_WM_KERNEL_NOMASK;
 
	return base + !is_affine;
}
 
static void
gen6_emit_urb(struct sna *sna)
{
	OUT_BATCH(GEN6_3DSTATE_URB | (3 - 2));
	OUT_BATCH(((1 - 1) << GEN6_3DSTATE_URB_VS_SIZE_SHIFT) |
		  (sna->render_state.gen6.info->urb.max_vs_entries << GEN6_3DSTATE_URB_VS_ENTRIES_SHIFT)); /* at least 24 on GEN6 */
	OUT_BATCH((0 << GEN6_3DSTATE_URB_GS_SIZE_SHIFT) |
		  (0 << GEN6_3DSTATE_URB_GS_ENTRIES_SHIFT)); /* no GS thread */
}
 
static void
gen6_emit_state_base_address(struct sna *sna)
{
	OUT_BATCH(GEN6_STATE_BASE_ADDRESS | (10 - 2));
	OUT_BATCH(0); /* general */
	OUT_BATCH(kgem_add_reloc(&sna->kgem, /* surface */
				 sna->kgem.nbatch,
				 NULL,
				 I915_GEM_DOMAIN_INSTRUCTION << 16,
				 BASE_ADDRESS_MODIFY));
	OUT_BATCH(kgem_add_reloc(&sna->kgem, /* instruction */
				 sna->kgem.nbatch,
				 sna->render_state.gen6.general_bo,
				 I915_GEM_DOMAIN_INSTRUCTION << 16,
				 BASE_ADDRESS_MODIFY));
	OUT_BATCH(0); /* indirect */
	OUT_BATCH(kgem_add_reloc(&sna->kgem,
				 sna->kgem.nbatch,
				 sna->render_state.gen6.general_bo,
				 I915_GEM_DOMAIN_INSTRUCTION << 16,
				 BASE_ADDRESS_MODIFY));
 
	/* upper bounds, disable */
	OUT_BATCH(0);
	OUT_BATCH(BASE_ADDRESS_MODIFY);
	OUT_BATCH(0);
	OUT_BATCH(BASE_ADDRESS_MODIFY);
}
 
static void
gen6_emit_viewports(struct sna *sna)
{
	OUT_BATCH(GEN6_3DSTATE_VIEWPORT_STATE_POINTERS |
		  GEN6_3DSTATE_VIEWPORT_STATE_MODIFY_CC |
		  (4 - 2));
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0);
}
 
static void
gen6_emit_vs(struct sna *sna)
{
	/* disable VS constant buffer */
	OUT_BATCH(GEN6_3DSTATE_CONSTANT_VS | (5 - 2));
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0);
 
	OUT_BATCH(GEN6_3DSTATE_VS | (6 - 2));
	OUT_BATCH(0); /* no VS kernel */
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0); /* pass-through */
}
 
static void
gen6_emit_gs(struct sna *sna)
{
	/* disable GS constant buffer */
	OUT_BATCH(GEN6_3DSTATE_CONSTANT_GS | (5 - 2));
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0);
 
	OUT_BATCH(GEN6_3DSTATE_GS | (7 - 2));
	OUT_BATCH(0); /* no GS kernel */
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0); /* pass-through */
}
 
static void
gen6_emit_clip(struct sna *sna)
{
	OUT_BATCH(GEN6_3DSTATE_CLIP | (4 - 2));
	OUT_BATCH(0);
	OUT_BATCH(0); /* pass-through */
	OUT_BATCH(0);
}
 
static void
gen6_emit_wm_constants(struct sna *sna)
{
	/* disable WM constant buffer */
	OUT_BATCH(GEN6_3DSTATE_CONSTANT_PS | (5 - 2));
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0);
}
 
static void
gen6_emit_null_depth_buffer(struct sna *sna)
{
	OUT_BATCH(GEN6_3DSTATE_DEPTH_BUFFER | (7 - 2));
	OUT_BATCH(GEN6_SURFACE_NULL << GEN6_3DSTATE_DEPTH_BUFFER_TYPE_SHIFT |
		  GEN6_DEPTHFORMAT_D32_FLOAT << GEN6_3DSTATE_DEPTH_BUFFER_FORMAT_SHIFT);
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0);
 
	OUT_BATCH(GEN6_3DSTATE_CLEAR_PARAMS | (2 - 2));
	OUT_BATCH(0);
}
 
static void
gen6_emit_invariant(struct sna *sna)
{
	OUT_BATCH(GEN6_PIPELINE_SELECT | PIPELINE_SELECT_3D);
 
	OUT_BATCH(GEN6_3DSTATE_MULTISAMPLE | (3 - 2));
	OUT_BATCH(GEN6_3DSTATE_MULTISAMPLE_PIXEL_LOCATION_CENTER |
              GEN6_3DSTATE_MULTISAMPLE_NUMSAMPLES_1); /* 1 sample/pixel */
	OUT_BATCH(0);
 
	OUT_BATCH(GEN6_3DSTATE_SAMPLE_MASK | (2 - 2));
	OUT_BATCH(1);
 
	gen6_emit_urb(sna);
 
	gen6_emit_state_base_address(sna);
 
	gen6_emit_viewports(sna);
	gen6_emit_vs(sna);
	gen6_emit_gs(sna);
	gen6_emit_clip(sna);
	gen6_emit_wm_constants(sna);
	gen6_emit_null_depth_buffer(sna);
 
	sna->render_state.gen6.needs_invariant = false;
}
 
static bool
gen6_emit_cc(struct sna *sna, int blend)
{
	struct gen6_render_state *render = &sna->render_state.gen6;
 
	if (render->blend == blend)
		return blend != NO_BLEND;
 
	DBG(("%s: blend = %x\n", __FUNCTION__, blend));
 
	OUT_BATCH(GEN6_3DSTATE_CC_STATE_POINTERS | (4 - 2));
	OUT_BATCH((render->cc_blend + blend) | 1);
	if (render->blend == (unsigned)-1) {
		OUT_BATCH(1);
		OUT_BATCH(1);
	} else {
		OUT_BATCH(0);
		OUT_BATCH(0);
	}
 
	render->blend = blend;
	return blend != NO_BLEND;
}
 
static void
gen6_emit_sampler(struct sna *sna, uint32_t state)
{
	if (sna->render_state.gen6.samplers == state)
		return;
 
	sna->render_state.gen6.samplers = state;
 
	DBG(("%s: sampler = %x\n", __FUNCTION__, state));
 
	OUT_BATCH(GEN6_3DSTATE_SAMPLER_STATE_POINTERS |
		  GEN6_3DSTATE_SAMPLER_STATE_MODIFY_PS |
		  (4 - 2));
	OUT_BATCH(0); /* VS */
	OUT_BATCH(0); /* GS */
	OUT_BATCH(sna->render_state.gen6.wm_state + state);
}
 
static void
gen6_emit_sf(struct sna *sna, bool has_mask)
{
	int num_sf_outputs = has_mask ? 2 : 1;
 
	if (sna->render_state.gen6.num_sf_outputs == num_sf_outputs)
		return;
 
	DBG(("%s: num_sf_outputs=%d, read_length=%d, read_offset=%d\n",
	     __FUNCTION__, num_sf_outputs, 1, 0));
 
	sna->render_state.gen6.num_sf_outputs = num_sf_outputs;
 
	OUT_BATCH(GEN6_3DSTATE_SF | (20 - 2));
	OUT_BATCH(num_sf_outputs << GEN6_3DSTATE_SF_NUM_OUTPUTS_SHIFT |
		  1 << GEN6_3DSTATE_SF_URB_ENTRY_READ_LENGTH_SHIFT |
		  1 << GEN6_3DSTATE_SF_URB_ENTRY_READ_OFFSET_SHIFT);
	OUT_BATCH(0);
	OUT_BATCH(GEN6_3DSTATE_SF_CULL_NONE);
	OUT_BATCH(2 << GEN6_3DSTATE_SF_TRIFAN_PROVOKE_SHIFT); /* DW4 */
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0); /* DW9 */
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0); /* DW14 */
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0);
	OUT_BATCH(0); /* DW19 */
}
 
static void
gen6_emit_wm(struct sna *sna, unsigned int kernel, bool has_mask)
{
	const uint32_t *kernels;
 
	if (sna->render_state.gen6.kernel == kernel)
		return;
 
	sna->render_state.gen6.kernel = kernel;
	kernels = sna->render_state.gen6.wm_kernel[kernel];
 
	DBG(("%s: switching to %s, num_surfaces=%d (8-pixel? %d, 16-pixel? %d,32-pixel? %d)\n",
	     __FUNCTION__,
	     wm_kernels[kernel].name, wm_kernels[kernel].num_surfaces,
	    kernels[0], kernels[1], kernels[2]));
 
	OUT_BATCH(GEN6_3DSTATE_WM | (9 - 2));
	OUT_BATCH(kernels[0] ?: kernels[1] ?: kernels[2]);
	OUT_BATCH(1 << GEN6_3DSTATE_WM_SAMPLER_COUNT_SHIFT |
		  wm_kernels[kernel].num_surfaces << GEN6_3DSTATE_WM_BINDING_TABLE_ENTRY_COUNT_SHIFT);
	OUT_BATCH(0); /* scratch space */
	OUT_BATCH((kernels[0] ? 4 : kernels[1] ? 6 : 8) << GEN6_3DSTATE_WM_DISPATCH_0_START_GRF_SHIFT |
		  8 << GEN6_3DSTATE_WM_DISPATCH_1_START_GRF_SHIFT |
		  6 << GEN6_3DSTATE_WM_DISPATCH_2_START_GRF_SHIFT);
	OUT_BATCH((sna->render_state.gen6.info->max_wm_threads - 1) << GEN6_3DSTATE_WM_MAX_THREADS_SHIFT |
		  (kernels[0] ? GEN6_3DSTATE_WM_8_DISPATCH_ENABLE : 0) |
		  (kernels[1] ? GEN6_3DSTATE_WM_16_DISPATCH_ENABLE : 0) |
		  (kernels[2] ? GEN6_3DSTATE_WM_32_DISPATCH_ENABLE : 0) |
		  GEN6_3DSTATE_WM_DISPATCH_ENABLE);
	OUT_BATCH((1 + has_mask) << GEN6_3DSTATE_WM_NUM_SF_OUTPUTS_SHIFT |
		  GEN6_3DSTATE_WM_PERSPECTIVE_PIXEL_BARYCENTRIC);
	OUT_BATCH(kernels[2]);
	OUT_BATCH(kernels[1]);
}
 
static bool
gen6_emit_binding_table(struct sna *sna, uint16_t offset)
{
	if (sna->render_state.gen6.surface_table == offset)
		return false;
 
	/* Binding table pointers */
	OUT_BATCH(GEN6_3DSTATE_BINDING_TABLE_POINTERS |
		  GEN6_3DSTATE_BINDING_TABLE_MODIFY_PS |
		  (4 - 2));
	OUT_BATCH(0);		/* vs */
	OUT_BATCH(0);		/* gs */
	/* Only the PS uses the binding table */
	OUT_BATCH(offset*4);
 
	sna->render_state.gen6.surface_table = offset;
	return true;
}
 
static bool
gen6_emit_drawing_rectangle(struct sna *sna,
			    const struct sna_composite_op *op)
{
	uint32_t limit = (op->dst.height - 1) << 16 | (op->dst.width - 1);
	uint32_t offset = (uint16_t)op->dst.y << 16 | (uint16_t)op->dst.x;
 
	assert(!too_large(op->dst.x, op->dst.y));
	assert(!too_large(op->dst.width, op->dst.height));
 
	if (sna->render_state.gen6.drawrect_limit  == limit &&
	    sna->render_state.gen6.drawrect_offset == offset)
		return false;
 
	/* [DevSNB-C+{W/A}] Before any depth stall flush (including those
	 * produced by non-pipelined state commands), software needs to first
	 * send a PIPE_CONTROL with no bits set except Post-Sync Operation !=
	 * 0.
	 *
	 * [Dev-SNB{W/A}]: Pipe-control with CS-stall bit set must be sent
	 * BEFORE the pipe-control with a post-sync op and no write-cache
	 * flushes.
	 */
	if (!sna->render_state.gen6.first_state_packet) {
	OUT_BATCH(GEN6_PIPE_CONTROL | (4 - 2));
	OUT_BATCH(GEN6_PIPE_CONTROL_CS_STALL |
		  GEN6_PIPE_CONTROL_STALL_AT_SCOREBOARD);
	OUT_BATCH(0);
	OUT_BATCH(0);
	}
 
	OUT_BATCH(GEN6_PIPE_CONTROL | (4 - 2));
	OUT_BATCH(GEN6_PIPE_CONTROL_WRITE_TIME);
	OUT_BATCH(kgem_add_reloc(&sna->kgem, sna->kgem.nbatch,
				 sna->render_state.gen6.general_bo,
				 I915_GEM_DOMAIN_INSTRUCTION << 16 |
				 I915_GEM_DOMAIN_INSTRUCTION,
				 64));
	OUT_BATCH(0);
 
	OUT_BATCH(GEN6_3DSTATE_DRAWING_RECTANGLE | (4 - 2));
	OUT_BATCH(0);
	OUT_BATCH(limit);
	OUT_BATCH(offset);
 
	sna->render_state.gen6.drawrect_offset = offset;
	sna->render_state.gen6.drawrect_limit = limit;
	return true;
}
 
static void
gen6_emit_vertex_elements(struct sna *sna,
			  const struct sna_composite_op *op)
{
	/*
	 * vertex data in vertex buffer
	 *    position: (x, y)
	 *    texture coordinate 0: (u0, v0) if (is_affine is true) else (u0, v0, w0)
	 *    texture coordinate 1 if (has_mask is true): same as above
	 */
	struct gen6_render_state *render = &sna->render_state.gen6;
	uint32_t src_format, dw;
	int id = GEN6_VERTEX(op->u.gen6.flags);
	bool has_mask;
 
	DBG(("%s: setup id=%d\n", __FUNCTION__, id));
 
	if (render->ve_id == id)
		return;
	render->ve_id = id;
 
	/* The VUE layout
	 *    dword 0-3: pad (0.0, 0.0, 0.0. 0.0)
	 *    dword 4-7: position (x, y, 1.0, 1.0),
	 *    dword 8-11: texture coordinate 0 (u0, v0, w0, 1.0)
	 *    dword 12-15: texture coordinate 1 (u1, v1, w1, 1.0)
	 *
	 * dword 4-15 are fetched from vertex buffer
	 */
	has_mask = (id >> 2) != 0;
	OUT_BATCH(GEN6_3DSTATE_VERTEX_ELEMENTS |
		((2 * (3 + has_mask)) + 1 - 2));
 
	OUT_BATCH(id << VE0_VERTEX_BUFFER_INDEX_SHIFT | VE0_VALID |
		  GEN6_SURFACEFORMAT_R32G32B32A32_FLOAT << VE0_FORMAT_SHIFT |
		  0 << VE0_OFFSET_SHIFT);
	OUT_BATCH(GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_0_SHIFT |
		  GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_1_SHIFT |
		  GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_2_SHIFT |
		  GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_3_SHIFT);
 
	/* x,y */
	OUT_BATCH(id << VE0_VERTEX_BUFFER_INDEX_SHIFT | VE0_VALID |
		  GEN6_SURFACEFORMAT_R16G16_SSCALED << VE0_FORMAT_SHIFT |
		  0 << VE0_OFFSET_SHIFT);
	OUT_BATCH(GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_0_SHIFT |
		  GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_1_SHIFT |
		  GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_2_SHIFT |
		  GEN6_VFCOMPONENT_STORE_1_FLT << VE1_VFCOMPONENT_3_SHIFT);
 
	/* u0, v0, w0 */
	DBG(("%s: first channel %d floats, offset=4b\n", __FUNCTION__, id & 3));
	dw = GEN6_VFCOMPONENT_STORE_1_FLT << VE1_VFCOMPONENT_3_SHIFT;
	switch (id & 3) {
	default:
		assert(0);
	case 0:
		src_format = GEN6_SURFACEFORMAT_R16G16_SSCALED;
		dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_0_SHIFT;
		dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_1_SHIFT;
		dw |= GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_2_SHIFT;
		break;
	case 1:
		src_format = GEN6_SURFACEFORMAT_R32_FLOAT;
		dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_0_SHIFT;
		dw |= GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_1_SHIFT;
		dw |= GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_2_SHIFT;
		break;
	case 2:
		src_format = GEN6_SURFACEFORMAT_R32G32_FLOAT;
		dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_0_SHIFT;
		dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_1_SHIFT;
		dw |= GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_2_SHIFT;
		break;
	case 3:
		src_format = GEN6_SURFACEFORMAT_R32G32B32_FLOAT;
		dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_0_SHIFT;
		dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_1_SHIFT;
		dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_2_SHIFT;
		break;
	}
	OUT_BATCH(id << VE0_VERTEX_BUFFER_INDEX_SHIFT | VE0_VALID |
		  src_format << VE0_FORMAT_SHIFT |
		  4 << VE0_OFFSET_SHIFT);
	OUT_BATCH(dw);
 
	/* u1, v1, w1 */
	if (has_mask) {
		unsigned offset = 4 + ((id & 3) ?: 1) * sizeof(float);
		DBG(("%s: second channel %d floats, offset=%db\n", __FUNCTION__, id >> 2, offset));
		dw = GEN6_VFCOMPONENT_STORE_1_FLT << VE1_VFCOMPONENT_3_SHIFT;
		switch (id >> 2) {
		case 1:
			src_format = GEN6_SURFACEFORMAT_R32_FLOAT;
			dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_0_SHIFT;
			dw |= GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_1_SHIFT;
			dw |= GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_2_SHIFT;
			break;
		default:
			assert(0);
		case 2:
			src_format = GEN6_SURFACEFORMAT_R32G32_FLOAT;
			dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_0_SHIFT;
			dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_1_SHIFT;
			dw |= GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_2_SHIFT;
			break;
		case 3:
			src_format = GEN6_SURFACEFORMAT_R32G32B32_FLOAT;
			dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_0_SHIFT;
			dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_1_SHIFT;
			dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_2_SHIFT;
			break;
		}
		OUT_BATCH(id << VE0_VERTEX_BUFFER_INDEX_SHIFT | VE0_VALID |
			  src_format << VE0_FORMAT_SHIFT |
			  offset << VE0_OFFSET_SHIFT);
		OUT_BATCH(dw);
	}
}
 
static void
gen6_emit_flush(struct sna *sna)
{
	OUT_BATCH(GEN6_PIPE_CONTROL | (4 - 2));
	OUT_BATCH(GEN6_PIPE_CONTROL_WC_FLUSH |
		  GEN6_PIPE_CONTROL_TC_FLUSH |
		  GEN6_PIPE_CONTROL_CS_STALL);
	OUT_BATCH(0);
	OUT_BATCH(0);
}
 
static void
gen6_emit_state(struct sna *sna,
		const struct sna_composite_op *op,
		uint16_t wm_binding_table)
{
	bool need_stall = wm_binding_table & 1;
 
	assert(op->dst.bo->exec);
 
	if (gen6_emit_cc(sna, GEN6_BLEND(op->u.gen6.flags)))
		need_stall = false;
	gen6_emit_sampler(sna, GEN6_SAMPLER(op->u.gen6.flags));
	gen6_emit_sf(sna, GEN6_VERTEX(op->u.gen6.flags) >> 2);
	gen6_emit_wm(sna, GEN6_KERNEL(op->u.gen6.flags), GEN6_VERTEX(op->u.gen6.flags) >> 2);
	gen6_emit_vertex_elements(sna, op);
 
	need_stall |= gen6_emit_binding_table(sna, wm_binding_table & ~1);
	if (gen6_emit_drawing_rectangle(sna, op))
		need_stall = false;
	if (kgem_bo_is_dirty(op->src.bo) || kgem_bo_is_dirty(op->mask.bo)) {
        gen6_emit_flush(sna);
        kgem_clear_dirty(&sna->kgem);
		assert(op->dst.bo->exec);
		kgem_bo_mark_dirty(op->dst.bo);
		need_stall = false;
	}
	if (need_stall) {
		OUT_BATCH(GEN6_PIPE_CONTROL | (4 - 2));
		OUT_BATCH(GEN6_PIPE_CONTROL_CS_STALL |
			  GEN6_PIPE_CONTROL_STALL_AT_SCOREBOARD);
		OUT_BATCH(0);
		OUT_BATCH(0);
	}
	sna->render_state.gen6.first_state_packet = false;
}
 
static bool gen6_magic_ca_pass(struct sna *sna,
			       const struct sna_composite_op *op)
{
	struct gen6_render_state *state = &sna->render_state.gen6;
 
	if (!op->need_magic_ca_pass)
		return false;
 
	DBG(("%s: CA fixup (%d -> %d)\n", __FUNCTION__,
	     sna->render.vertex_start, sna->render.vertex_index));
 
	gen6_emit_flush(sna);
 
	gen6_emit_cc(sna, gen6_get_blend(PictOpAdd, true, op->dst.format));
	gen6_emit_wm(sna,
		     gen6_choose_composite_kernel(PictOpAdd,
						  true, true,
						  op->is_affine),
		     true);
 
	OUT_BATCH(GEN6_3DPRIMITIVE |
		  GEN6_3DPRIMITIVE_VERTEX_SEQUENTIAL |
		  _3DPRIM_RECTLIST << GEN6_3DPRIMITIVE_TOPOLOGY_SHIFT |
		  0 << 9 |
		  4);
	OUT_BATCH(sna->render.vertex_index - sna->render.vertex_start);
	OUT_BATCH(sna->render.vertex_start);
	OUT_BATCH(1);	/* single instance */
	OUT_BATCH(0);	/* start instance location */
	OUT_BATCH(0);	/* index buffer offset, ignored */
 
	state->last_primitive = sna->kgem.nbatch;
	return true;
}
 
typedef struct gen6_surface_state_padded {
	struct gen6_surface_state state;
	char pad[32 - sizeof(struct gen6_surface_state)];
} gen6_surface_state_padded;
 
static void null_create(struct sna_static_stream *stream)
{
	/* A bunch of zeros useful for legacy border color and depth-stencil */
	sna_static_stream_map(stream, 64, 64);
}
 
static void scratch_create(struct sna_static_stream *stream)
{
	/* 64 bytes of scratch space for random writes, such as
	 * the pipe-control w/a.
	 */
	sna_static_stream_map(stream, 64, 64);
}
 
static void
sampler_state_init(struct gen6_sampler_state *sampler_state,
		   sampler_filter_t filter,
		   sampler_extend_t extend)
{
	sampler_state->ss0.lod_preclamp = 1;	/* GL mode */
 
	/* We use the legacy mode to get the semantics specified by
	 * the Render extension. */
	sampler_state->ss0.border_color_mode = GEN6_BORDER_COLOR_MODE_LEGACY;
 
	switch (filter) {
	default:
	case SAMPLER_FILTER_NEAREST:
		sampler_state->ss0.min_filter = GEN6_MAPFILTER_NEAREST;
		sampler_state->ss0.mag_filter = GEN6_MAPFILTER_NEAREST;
		break;
	case SAMPLER_FILTER_BILINEAR:
		sampler_state->ss0.min_filter = GEN6_MAPFILTER_LINEAR;
		sampler_state->ss0.mag_filter = GEN6_MAPFILTER_LINEAR;
		break;
	}
 
	switch (extend) {
	default:
	case SAMPLER_EXTEND_NONE:
		sampler_state->ss1.r_wrap_mode = GEN6_TEXCOORDMODE_CLAMP_BORDER;
		sampler_state->ss1.s_wrap_mode = GEN6_TEXCOORDMODE_CLAMP_BORDER;
		sampler_state->ss1.t_wrap_mode = GEN6_TEXCOORDMODE_CLAMP_BORDER;
		break;
	case SAMPLER_EXTEND_REPEAT:
		sampler_state->ss1.r_wrap_mode = GEN6_TEXCOORDMODE_WRAP;
		sampler_state->ss1.s_wrap_mode = GEN6_TEXCOORDMODE_WRAP;
		sampler_state->ss1.t_wrap_mode = GEN6_TEXCOORDMODE_WRAP;
		break;
	case SAMPLER_EXTEND_PAD:
		sampler_state->ss1.r_wrap_mode = GEN6_TEXCOORDMODE_CLAMP;
		sampler_state->ss1.s_wrap_mode = GEN6_TEXCOORDMODE_CLAMP;
		sampler_state->ss1.t_wrap_mode = GEN6_TEXCOORDMODE_CLAMP;
		break;
	case SAMPLER_EXTEND_REFLECT:
		sampler_state->ss1.r_wrap_mode = GEN6_TEXCOORDMODE_MIRROR;
		sampler_state->ss1.s_wrap_mode = GEN6_TEXCOORDMODE_MIRROR;
		sampler_state->ss1.t_wrap_mode = GEN6_TEXCOORDMODE_MIRROR;
		break;
	}
}
 
static void
sampler_copy_init(struct gen6_sampler_state *ss)
{
	sampler_state_init(ss, SAMPLER_FILTER_NEAREST, SAMPLER_EXTEND_NONE);
	ss->ss3.non_normalized_coord = 1;
 
	sampler_state_init(ss+1, SAMPLER_FILTER_NEAREST, SAMPLER_EXTEND_NONE);
}
 
static void
sampler_fill_init(struct gen6_sampler_state *ss)
{
	sampler_state_init(ss, SAMPLER_FILTER_NEAREST, SAMPLER_EXTEND_REPEAT);
	ss->ss3.non_normalized_coord = 1;
 
	sampler_state_init(ss+1, SAMPLER_FILTER_NEAREST, SAMPLER_EXTEND_NONE);
}
 
static uint32_t
gen6_tiling_bits(uint32_t tiling)
{
	switch (tiling) {
	default: assert(0);
	case I915_TILING_NONE: return 0;
	case I915_TILING_X: return GEN6_SURFACE_TILED;
	case I915_TILING_Y: return GEN6_SURFACE_TILED | GEN6_SURFACE_TILED_Y;
	}
}
 
/**
 * Sets up the common fields for a surface state buffer for the given
 * picture in the given surface state buffer.
 */
static int
gen6_bind_bo(struct sna *sna,
         struct kgem_bo *bo,
	     uint32_t width,
	     uint32_t height,
	     uint32_t format,
	     bool is_dst)
{
	uint32_t *ss;
	uint32_t domains;
	uint16_t offset;
	uint32_t is_scanout = is_dst && bo->scanout;
 
	/* After the first bind, we manage the cache domains within the batch */
	offset = kgem_bo_get_binding(bo, format | is_dst << 30 | is_scanout << 31);
	if (offset) {
		DBG(("[%x]  bo(handle=%d), format=%d, reuse %s binding\n",
		     offset, bo->handle, format,
		     is_dst ? "render" : "sampler"));
		if (is_dst)
			kgem_bo_mark_dirty(bo);
		return offset * sizeof(uint32_t);
	}
 
	offset = sna->kgem.surface -=
		sizeof(struct gen6_surface_state_padded) / sizeof(uint32_t);
	ss = sna->kgem.batch + offset;
	ss[0] = (GEN6_SURFACE_2D << GEN6_SURFACE_TYPE_SHIFT |
		 GEN6_SURFACE_BLEND_ENABLED |
		 format << GEN6_SURFACE_FORMAT_SHIFT);
	if (is_dst) {
		ss[0] |= GEN6_SURFACE_RC_READ_WRITE;
		domains = I915_GEM_DOMAIN_RENDER << 16 |I915_GEM_DOMAIN_RENDER;
	} else
		domains = I915_GEM_DOMAIN_SAMPLER << 16;
	ss[1] = kgem_add_reloc(&sna->kgem, offset + 1, bo, domains, 0);
	ss[2] = ((width - 1)  << GEN6_SURFACE_WIDTH_SHIFT |
		 (height - 1) << GEN6_SURFACE_HEIGHT_SHIFT);
	assert(bo->pitch <= (1 << 18));
	ss[3] = (gen6_tiling_bits(bo->tiling) |
		 (bo->pitch - 1) << GEN6_SURFACE_PITCH_SHIFT);
	ss[4] = 0;
	ss[5] = (is_scanout || bo->io) ? 0 : 3 << 16;
 
	kgem_bo_set_binding(bo, format | is_dst << 30 | is_scanout << 31, offset);
 
	DBG(("[%x] bind bo(handle=%d, addr=%d), format=%d, width=%d, height=%d, pitch=%d, tiling=%d -> %s\n",
	     offset, bo->handle, ss[1],
	     format, width, height, bo->pitch, bo->tiling,
	     domains & 0xffff ? "render" : "sampler"));
 
	return offset * sizeof(uint32_t);
}
 
static void gen6_emit_vertex_buffer(struct sna *sna,
				    const struct sna_composite_op *op)
{
	int id = GEN6_VERTEX(op->u.gen6.flags);
 
	OUT_BATCH(GEN6_3DSTATE_VERTEX_BUFFERS | 3);
	OUT_BATCH(id << VB0_BUFFER_INDEX_SHIFT | VB0_VERTEXDATA |
		  4*op->floats_per_vertex << VB0_BUFFER_PITCH_SHIFT);
	sna->render.vertex_reloc[sna->render.nvertex_reloc++] = sna->kgem.nbatch;
	OUT_BATCH(0);
	OUT_BATCH(~0); /* max address: disabled */
	OUT_BATCH(0);
 
	sna->render.vb_id |= 1 << id;
}
 
static void gen6_emit_primitive(struct sna *sna)
{
	if (sna->kgem.nbatch == sna->render_state.gen6.last_primitive) {
		DBG(("%s: continuing previous primitive, start=%d, index=%d\n",
		     __FUNCTION__,
		     sna->render.vertex_start,
		     sna->render.vertex_index));
		sna->render.vertex_offset = sna->kgem.nbatch - 5;
		return;
	}
 
	OUT_BATCH(GEN6_3DPRIMITIVE |
		  GEN6_3DPRIMITIVE_VERTEX_SEQUENTIAL |
		  _3DPRIM_RECTLIST << GEN6_3DPRIMITIVE_TOPOLOGY_SHIFT |
		  0 << 9 |
		  4);
	sna->render.vertex_offset = sna->kgem.nbatch;
	OUT_BATCH(0);	/* vertex count, to be filled in later */
	OUT_BATCH(sna->render.vertex_index);
	OUT_BATCH(1);	/* single instance */
	OUT_BATCH(0);	/* start instance location */
	OUT_BATCH(0);	/* index buffer offset, ignored */
	sna->render.vertex_start = sna->render.vertex_index;
	DBG(("%s: started new primitive: index=%d\n",
	     __FUNCTION__, sna->render.vertex_start));
 
	sna->render_state.gen6.last_primitive = sna->kgem.nbatch;
}
 
static bool gen6_rectangle_begin(struct sna *sna,
				 const struct sna_composite_op *op)
{
	int id = 1 << GEN6_VERTEX(op->u.gen6.flags);
	int ndwords;
 
	if (sna_vertex_wait__locked(&sna->render) && sna->render.vertex_offset)
		return true;
 
	ndwords = op->need_magic_ca_pass ? 60 : 6;
	if ((sna->render.vb_id & id) == 0)
		ndwords += 5;
	if (!kgem_check_batch(&sna->kgem, ndwords))
		return false;
 
	if ((sna->render.vb_id & id) == 0)
		gen6_emit_vertex_buffer(sna, op);
 
	gen6_emit_primitive(sna);
	return true;
}
 
static int gen6_get_rectangles__flush(struct sna *sna,
				      const struct sna_composite_op *op)
{
	/* Preventing discarding new vbo after lock contention */
	if (sna_vertex_wait__locked(&sna->render)) {
		int rem = vertex_space(sna);
		if (rem > op->floats_per_rect)
			return rem;
	}
 
	if (!kgem_check_batch(&sna->kgem, op->need_magic_ca_pass ? 65 : 5))
		return 0;
	if (!kgem_check_reloc_and_exec(&sna->kgem, 2))
		return 0;
 
	if (sna->render.vertex_offset) {
		gen4_vertex_flush(sna);
		if (gen6_magic_ca_pass(sna, op)) {
			gen6_emit_flush(sna);
			gen6_emit_cc(sna, GEN6_BLEND(op->u.gen6.flags));
			gen6_emit_wm(sna,
				     GEN6_KERNEL(op->u.gen6.flags),
				     GEN6_VERTEX(op->u.gen6.flags) >> 2);
		}
	}
 
	return gen4_vertex_finish(sna);
}
 
inline static int gen6_get_rectangles(struct sna *sna,
				      const struct sna_composite_op *op,
				      int want,
				      void (*emit_state)(struct sna *, const struct sna_composite_op *op))
{
	int rem;
 
	assert(want);
 
start:
	rem = vertex_space(sna);
	if (unlikely(rem < op->floats_per_rect)) {
		DBG(("flushing vbo for %s: %d < %d\n",
		     __FUNCTION__, rem, op->floats_per_rect));
		rem = gen6_get_rectangles__flush(sna, op);
		if (unlikely(rem == 0))
			goto flush;
	}
 
	if (unlikely(sna->render.vertex_offset == 0)) {
		if (!gen6_rectangle_begin(sna, op))
		goto flush;
		else
			goto start;
	}
 
	assert(rem <= vertex_space(sna));
	assert(op->floats_per_rect <= rem);
	if (want > 1 && want * op->floats_per_rect > rem)
		want = rem / op->floats_per_rect;
 
	assert(want > 0);
	sna->render.vertex_index += 3*want;
	return want;
 
flush:
	if (sna->render.vertex_offset) {
		gen4_vertex_flush(sna);
		gen6_magic_ca_pass(sna, op);
	}
	sna_vertex_wait__locked(&sna->render);
	_kgem_submit(&sna->kgem);
	emit_state(sna, op);
	goto start;
}
 
inline static uint32_t *gen6_composite_get_binding_table(struct sna *sna,
							 uint16_t *offset)
{
	uint32_t *table;
 
	sna->kgem.surface -=
		sizeof(struct gen6_surface_state_padded) / sizeof(uint32_t);
	/* Clear all surplus entries to zero in case of prefetch */
	table = memset(sna->kgem.batch + sna->kgem.surface,
		       0, sizeof(struct gen6_surface_state_padded));
 
	DBG(("%s(%x)\n", __FUNCTION__, 4*sna->kgem.surface));
 
	*offset = sna->kgem.surface;
	return table;
}
 
static bool
gen6_get_batch(struct sna *sna, const struct sna_composite_op *op)
{
	kgem_set_mode(&sna->kgem, KGEM_RENDER, op->dst.bo);
 
	if (!kgem_check_batch_with_surfaces(&sna->kgem, 150, 4)) {
		DBG(("%s: flushing batch: %d < %d+%d\n",
		     __FUNCTION__, sna->kgem.surface - sna->kgem.nbatch,
		     150, 4*8));
		kgem_submit(&sna->kgem);
		_kgem_set_mode(&sna->kgem, KGEM_RENDER);
	}
 
	if (sna->render_state.gen6.needs_invariant)
		gen6_emit_invariant(sna);
 
	return kgem_bo_is_dirty(op->dst.bo);
}
 
static void gen6_emit_composite_state(struct sna *sna,
                      const struct sna_composite_op *op)
{
    uint32_t *binding_table;
    uint16_t offset;
    bool dirty;
 
	dirty = gen6_get_batch(sna, op);
 
    binding_table = gen6_composite_get_binding_table(sna, &offset);
 
    binding_table[0] =
        gen6_bind_bo(sna,
                op->dst.bo, op->dst.width, op->dst.height,
			    gen6_get_dest_format(op->dst.format),
			    true);
    binding_table[1] =
        gen6_bind_bo(sna,
                 op->src.bo, op->src.width, op->src.height,
                 op->src.card_format,
			     false);
    if (op->mask.bo) {
        binding_table[2] =
            gen6_bind_bo(sna,
                     op->mask.bo,
                     op->mask.width,
                     op->mask.height,
                     op->mask.card_format,
				     false);
    }
 
    if (sna->kgem.surface == offset &&
        *(uint64_t *)(sna->kgem.batch + sna->render_state.gen6.surface_table) == *(uint64_t*)binding_table &&
        (op->mask.bo == NULL ||
         sna->kgem.batch[sna->render_state.gen6.surface_table+2] == binding_table[2])) {
        sna->kgem.surface += sizeof(struct gen6_surface_state_padded) / sizeof(uint32_t);
        offset = sna->render_state.gen6.surface_table;
    }
 
    gen6_emit_state(sna, op, offset | dirty);
}
 
static void
gen6_align_vertex(struct sna *sna, const struct sna_composite_op *op)
{
	assert (sna->render.vertex_offset == 0);
	if (op->floats_per_vertex != sna->render_state.gen6.floats_per_vertex) {
		if (sna->render.vertex_size - sna->render.vertex_used < 2*op->floats_per_rect)
			gen4_vertex_finish(sna);
 
		DBG(("aligning vertex: was %d, now %d floats per vertex, %d->%d\n",
		     sna->render_state.gen6.floats_per_vertex,
		     op->floats_per_vertex,
		     sna->render.vertex_index,
		     (sna->render.vertex_used + op->floats_per_vertex - 1) / op->floats_per_vertex));
		sna->render.vertex_index = (sna->render.vertex_used + op->floats_per_vertex - 1) / op->floats_per_vertex;
		sna->render.vertex_used = sna->render.vertex_index * op->floats_per_vertex;
		sna->render_state.gen6.floats_per_vertex = op->floats_per_vertex;
	}
	assert((sna->render.vertex_used % op->floats_per_vertex) == 0);
}
 
fastcall static void
gen6_render_composite_blt(struct sna *sna,
			  const struct sna_composite_op *op,
			  const struct sna_composite_rectangles *r)
{
	gen6_get_rectangles(sna, op, 1, gen6_emit_composite_state);
	op->prim_emit(sna, op, r);
}
 
#if 0
fastcall static void
gen6_render_composite_box(struct sna *sna,
			  const struct sna_composite_op *op,
			  const BoxRec *box)
{
	struct sna_composite_rectangles r;
 
	gen6_get_rectangles(sna, op, 1, gen6_emit_composite_state);
 
	DBG(("  %s: (%d, %d), (%d, %d)\n",
	     __FUNCTION__,
	     box->x1, box->y1, box->x2, box->y2));
 
	r.dst.x = box->x1;
	r.dst.y = box->y1;
	r.width  = box->x2 - box->x1;
	r.height = box->y2 - box->y1;
	r.src = r.mask = r.dst;
 
	op->prim_emit(sna, op, &r);
}
 
static void
gen6_render_composite_boxes__blt(struct sna *sna,
				 const struct sna_composite_op *op,
				 const BoxRec *box, int nbox)
{
	DBG(("composite_boxes(%d)\n", nbox));
 
	do {
		int nbox_this_time;
 
		nbox_this_time = gen6_get_rectangles(sna, op, nbox,
						     gen6_emit_composite_state);
		nbox -= nbox_this_time;
 
		do {
			struct sna_composite_rectangles r;
 
			DBG(("  %s: (%d, %d), (%d, %d)\n",
			     __FUNCTION__,
			     box->x1, box->y1, box->x2, box->y2));
 
			r.dst.x = box->x1;
			r.dst.y = box->y1;
			r.width  = box->x2 - box->x1;
			r.height = box->y2 - box->y1;
			r.src = r.mask = r.dst;
 
			op->prim_emit(sna, op, &r);
			box++;
		} while (--nbox_this_time);
	} while (nbox);
}
 
static void
gen6_render_composite_boxes(struct sna *sna,
			    const struct sna_composite_op *op,
			    const BoxRec *box, int nbox)
{
	DBG(("%s: nbox=%d\n", __FUNCTION__, nbox));
 
	do {
		int nbox_this_time;
		float *v;
 
		nbox_this_time = gen6_get_rectangles(sna, op, nbox,
						     gen6_emit_composite_state);
		assert(nbox_this_time);
		nbox -= nbox_this_time;
 
		v = sna->render.vertices + sna->render.vertex_used;
		sna->render.vertex_used += nbox_this_time * op->floats_per_rect;
 
		op->emit_boxes(op, box, nbox_this_time, v);
		box += nbox_this_time;
	} while (nbox);
}
 
static void
gen6_render_composite_boxes__thread(struct sna *sna,
				    const struct sna_composite_op *op,
				    const BoxRec *box, int nbox)
{
	DBG(("%s: nbox=%d\n", __FUNCTION__, nbox));
 
	sna_vertex_lock(&sna->render);
	do {
		int nbox_this_time;
		float *v;
 
		nbox_this_time = gen6_get_rectangles(sna, op, nbox,
						     gen6_emit_composite_state);
		assert(nbox_this_time);
		nbox -= nbox_this_time;
 
		v = sna->render.vertices + sna->render.vertex_used;
		sna->render.vertex_used += nbox_this_time * op->floats_per_rect;
 
		sna_vertex_acquire__locked(&sna->render);
		sna_vertex_unlock(&sna->render);
 
		op->emit_boxes(op, box, nbox_this_time, v);
		box += nbox_this_time;
 
		sna_vertex_lock(&sna->render);
		sna_vertex_release__locked(&sna->render);
	} while (nbox);
	sna_vertex_unlock(&sna->render);
}
#endif
 
#ifndef MAX
#define MAX(a,b) ((a) > (b) ? (a) : (b))
#endif
 
static uint32_t
gen6_composite_create_blend_state(struct sna_static_stream *stream)
{
	char *base, *ptr;
	int src, dst;
 
	base = sna_static_stream_map(stream,
				     GEN6_BLENDFACTOR_COUNT * GEN6_BLENDFACTOR_COUNT * GEN6_BLEND_STATE_PADDED_SIZE,
				     64);
 
	ptr = base;
	for (src = 0; src < GEN6_BLENDFACTOR_COUNT; src++) {
		for (dst= 0; dst < GEN6_BLENDFACTOR_COUNT; dst++) {
			struct gen6_blend_state *blend =
				(struct gen6_blend_state *)ptr;
 
			blend->blend0.dest_blend_factor = dst;
			blend->blend0.source_blend_factor = src;
			blend->blend0.blend_func = GEN6_BLENDFUNCTION_ADD;
			blend->blend0.blend_enable =
				!(dst == GEN6_BLENDFACTOR_ZERO && src == GEN6_BLENDFACTOR_ONE);
 
			blend->blend1.post_blend_clamp_enable = 1;
			blend->blend1.pre_blend_clamp_enable = 1;
 
			ptr += GEN6_BLEND_STATE_PADDED_SIZE;
		}
	}
 
	return sna_static_stream_offsetof(stream, base);
}
 
#if 0
static uint32_t gen6_bind_video_source(struct sna *sna,
				       struct kgem_bo *src_bo,
				       uint32_t src_offset,
				       int src_width,
				       int src_height,
				       int src_pitch,
				       uint32_t src_surf_format)
{
	struct gen6_surface_state *ss;
 
	sna->kgem.surface -= sizeof(struct gen6_surface_state_padded) / sizeof(uint32_t);
 
	ss = memset(sna->kgem.batch + sna->kgem.surface, 0, sizeof(*ss));
	ss->ss0.surface_type = GEN6_SURFACE_2D;
	ss->ss0.surface_format = src_surf_format;
 
	ss->ss1.base_addr =
		kgem_add_reloc(&sna->kgem,
			       sna->kgem.surface + 1,
			       src_bo,
			       I915_GEM_DOMAIN_SAMPLER << 16,
			       src_offset);
 
	ss->ss2.width  = src_width - 1;
	ss->ss2.height = src_height - 1;
	ss->ss3.pitch  = src_pitch - 1;
 
	return sna->kgem.surface * sizeof(uint32_t);
}
 
static void gen6_emit_video_state(struct sna *sna,
				  const struct sna_composite_op *op)
{
	struct sna_video_frame *frame = op->priv;
	uint32_t src_surf_format;
	uint32_t src_surf_base[6];
	int src_width[6];
	int src_height[6];
	int src_pitch[6];
	uint32_t *binding_table;
	uint16_t offset;
	bool dirty;
	int n_src, n;
 
	dirty = gen6_get_batch(sna, op);
 
	src_surf_base[0] = 0;
	src_surf_base[1] = 0;
	src_surf_base[2] = frame->VBufOffset;
	src_surf_base[3] = frame->VBufOffset;
	src_surf_base[4] = frame->UBufOffset;
	src_surf_base[5] = frame->UBufOffset;
 
	if (is_planar_fourcc(frame->id)) {
		src_surf_format = GEN6_SURFACEFORMAT_R8_UNORM;
		src_width[1]  = src_width[0]  = frame->width;
		src_height[1] = src_height[0] = frame->height;
		src_pitch[1]  = src_pitch[0]  = frame->pitch[1];
		src_width[4]  = src_width[5]  = src_width[2]  = src_width[3] =
			frame->width / 2;
		src_height[4] = src_height[5] = src_height[2] = src_height[3] =
			frame->height / 2;
		src_pitch[4]  = src_pitch[5]  = src_pitch[2]  = src_pitch[3] =
			frame->pitch[0];
		n_src = 6;
	} else {
		if (frame->id == FOURCC_UYVY)
			src_surf_format = GEN6_SURFACEFORMAT_YCRCB_SWAPY;
		else
			src_surf_format = GEN6_SURFACEFORMAT_YCRCB_NORMAL;
 
		src_width[0]  = frame->width;
		src_height[0] = frame->height;
		src_pitch[0]  = frame->pitch[0];
		n_src = 1;
	}
 
	binding_table = gen6_composite_get_binding_table(sna, &offset);
 
	binding_table[0] =
		gen6_bind_bo(sna,
			     op->dst.bo, op->dst.width, op->dst.height,
			     gen6_get_dest_format(op->dst.format),
			     true);
	for (n = 0; n < n_src; n++) {
		binding_table[1+n] =
			gen6_bind_video_source(sna,
					       frame->bo,
					       src_surf_base[n],
					       src_width[n],
					       src_height[n],
					       src_pitch[n],
					       src_surf_format);
	}
 
	gen6_emit_state(sna, op, offset | dirty);
}
 
static bool
gen6_render_video(struct sna *sna,
		  struct sna_video *video,
		  struct sna_video_frame *frame,
		  RegionPtr dstRegion,
		  PixmapPtr pixmap)
{
	struct sna_composite_op tmp;
	int dst_width = dstRegion->extents.x2 - dstRegion->extents.x1;
	int dst_height = dstRegion->extents.y2 - dstRegion->extents.y1;
	int src_width = frame->src.x2 - frame->src.x1;
	int src_height = frame->src.y2 - frame->src.y1;
	float src_offset_x, src_offset_y;
	float src_scale_x, src_scale_y;
	int nbox, pix_xoff, pix_yoff;
	struct sna_pixmap *priv;
	unsigned filter;
	BoxPtr box;
 
	DBG(("%s: src=(%d, %d), dst=(%d, %d), %ldx[(%d, %d), (%d, %d)...]\n",
	     __FUNCTION__,
	     src_width, src_height, dst_width, dst_height,
	     (long)REGION_NUM_RECTS(dstRegion),
	     REGION_EXTENTS(NULL, dstRegion)->x1,
	     REGION_EXTENTS(NULL, dstRegion)->y1,
	     REGION_EXTENTS(NULL, dstRegion)->x2,
	     REGION_EXTENTS(NULL, dstRegion)->y2));
 
	priv = sna_pixmap_force_to_gpu(pixmap, MOVE_READ | MOVE_WRITE);
	if (priv == NULL)
		return false;
 
	memset(&tmp, 0, sizeof(tmp));
 
	tmp.dst.pixmap = pixmap;
	tmp.dst.width  = pixmap->drawable.width;
	tmp.dst.height = pixmap->drawable.height;
	tmp.dst.format = sna_render_format_for_depth(pixmap->drawable.depth);
	tmp.dst.bo = priv->gpu_bo;
 
	tmp.src.bo = frame->bo;
	tmp.mask.bo = NULL;
 
	tmp.floats_per_vertex = 3;
	tmp.floats_per_rect = 9;
 
	if (src_width == dst_width && src_height == dst_height)
		filter = SAMPLER_FILTER_NEAREST;
	else
		filter = SAMPLER_FILTER_BILINEAR;
 
	tmp.u.gen6.flags =
		GEN6_SET_FLAGS(SAMPLER_OFFSET(filter, SAMPLER_EXTEND_PAD,
					       SAMPLER_FILTER_NEAREST, SAMPLER_EXTEND_NONE),
			       NO_BLEND,
			       is_planar_fourcc(frame->id) ?
			       GEN6_WM_KERNEL_VIDEO_PLANAR :
			       GEN6_WM_KERNEL_VIDEO_PACKED,
			       2);
	tmp.priv = frame;
 
	kgem_set_mode(&sna->kgem, KGEM_RENDER, tmp.dst.bo);
	if (!kgem_check_bo(&sna->kgem, tmp.dst.bo, frame->bo, NULL)) {
		kgem_submit(&sna->kgem);
		assert(kgem_check_bo(&sna->kgem, tmp.dst.bo, frame->bo, NULL));
		_kgem_set_mode(&sna->kgem, KGEM_RENDER);
	}
 
	gen6_emit_video_state(sna, &tmp);
	gen6_align_vertex(sna, &tmp);
 
	/* Set up the offset for translating from the given region (in screen
	 * coordinates) to the backing pixmap.
	 */
#ifdef COMPOSITE
	pix_xoff = -pixmap->screen_x + pixmap->drawable.x;
	pix_yoff = -pixmap->screen_y + pixmap->drawable.y;
#else
	pix_xoff = 0;
	pix_yoff = 0;
#endif
 
	src_scale_x = (float)src_width / dst_width / frame->width;
	src_offset_x = (float)frame->src.x1 / frame->width - dstRegion->extents.x1 * src_scale_x;
 
	src_scale_y = (float)src_height / dst_height / frame->height;
	src_offset_y = (float)frame->src.y1 / frame->height - dstRegion->extents.y1 * src_scale_y;
 
	box = REGION_RECTS(dstRegion);
	nbox = REGION_NUM_RECTS(dstRegion);
	while (nbox--) {
		BoxRec r;
 
		r.x1 = box->x1 + pix_xoff;
		r.x2 = box->x2 + pix_xoff;
		r.y1 = box->y1 + pix_yoff;
		r.y2 = box->y2 + pix_yoff;
 
		gen6_get_rectangles(sna, &tmp, 1, gen6_emit_video_state);
 
		OUT_VERTEX(r.x2, r.y2);
		OUT_VERTEX_F(box->x2 * src_scale_x + src_offset_x);
		OUT_VERTEX_F(box->y2 * src_scale_y + src_offset_y);
 
		OUT_VERTEX(r.x1, r.y2);
		OUT_VERTEX_F(box->x1 * src_scale_x + src_offset_x);
		OUT_VERTEX_F(box->y2 * src_scale_y + src_offset_y);
 
		OUT_VERTEX(r.x1, r.y1);
		OUT_VERTEX_F(box->x1 * src_scale_x + src_offset_x);
		OUT_VERTEX_F(box->y1 * src_scale_y + src_offset_y);
 
		if (!DAMAGE_IS_ALL(priv->gpu_damage)) {
			sna_damage_add_box(&priv->gpu_damage, &r);
			sna_damage_subtract_box(&priv->cpu_damage, &r);
		}
		box++;
	}
 
	gen4_vertex_flush(sna);
	return true;
}
 
static int
gen6_composite_picture(struct sna *sna,
		       PicturePtr picture,
		       struct sna_composite_channel *channel,
		       int x, int y,
		       int w, int h,
		       int dst_x, int dst_y,
		       bool precise)
{
	PixmapPtr pixmap;
	uint32_t color;
	int16_t dx, dy;
 
	DBG(("%s: (%d, %d)x(%d, %d), dst=(%d, %d)\n",
	     __FUNCTION__, x, y, w, h, dst_x, dst_y));
 
	channel->is_solid = false;
	channel->card_format = -1;
 
	if (sna_picture_is_solid(picture, &color))
		return gen4_channel_init_solid(sna, channel, color);
 
	if (picture->pDrawable == NULL) {
		int ret;
 
		if (picture->pSourcePict->type == SourcePictTypeLinear)
			return gen4_channel_init_linear(sna, picture, channel,
							x, y,
							w, h,
							dst_x, dst_y);
 
		DBG(("%s -- fixup, gradient\n", __FUNCTION__));
		ret = -1;
		if (!precise)
			ret = sna_render_picture_approximate_gradient(sna, picture, channel,
								      x, y, w, h, dst_x, dst_y);
		if (ret == -1)
			ret = sna_render_picture_fixup(sna, picture, channel,
						       x, y, w, h, dst_x, dst_y);
		return ret;
	}
 
	if (picture->alphaMap) {
		DBG(("%s -- fixup, alphamap\n", __FUNCTION__));
		return sna_render_picture_fixup(sna, picture, channel,
						x, y, w, h, dst_x, dst_y);
	}
 
	if (!gen6_check_repeat(picture))
		return sna_render_picture_fixup(sna, picture, channel,
						x, y, w, h, dst_x, dst_y);
 
	if (!gen6_check_filter(picture))
		return sna_render_picture_fixup(sna, picture, channel,
						x, y, w, h, dst_x, dst_y);
 
	channel->repeat = picture->repeat ? picture->repeatType : RepeatNone;
	channel->filter = picture->filter;
 
	pixmap = get_drawable_pixmap(picture->pDrawable);
	get_drawable_deltas(picture->pDrawable, pixmap, &dx, &dy);
 
	x += dx + picture->pDrawable->x;
	y += dy + picture->pDrawable->y;
 
	channel->is_affine = sna_transform_is_affine(picture->transform);
	if (sna_transform_is_integer_translation(picture->transform, &dx, &dy)) {
		DBG(("%s: integer translation (%d, %d), removing\n",
		     __FUNCTION__, dx, dy));
		x += dx;
		y += dy;
		channel->transform = NULL;
		channel->filter = PictFilterNearest;
	} else
		channel->transform = picture->transform;
 
	channel->pict_format = picture->format;
	channel->card_format = gen6_get_card_format(picture->format);
	if (channel->card_format == (unsigned)-1)
		return sna_render_picture_convert(sna, picture, channel, pixmap,
						  x, y, w, h, dst_x, dst_y,
						  false);
 
	if (too_large(pixmap->drawable.width, pixmap->drawable.height)) {
		DBG(("%s: extracting from pixmap %dx%d\n", __FUNCTION__,
		     pixmap->drawable.width, pixmap->drawable.height));
		return sna_render_picture_extract(sna, picture, channel,
						  x, y, w, h, dst_x, dst_y);
	}
 
	return sna_render_pixmap_bo(sna, channel, pixmap,
				    x, y, w, h, dst_x, dst_y);
}
 
inline static void gen6_composite_channel_convert(struct sna_composite_channel *channel)
{
	channel->repeat = gen6_repeat(channel->repeat);
	channel->filter = gen6_filter(channel->filter);
	if (channel->card_format == (unsigned)-1)
		channel->card_format = gen6_get_card_format(channel->pict_format);
	assert(channel->card_format != (unsigned)-1);
}
#endif
 
static void gen6_render_composite_done(struct sna *sna,
                       const struct sna_composite_op *op)
{
    DBG(("%s\n", __FUNCTION__));
 
	assert(!sna->render.active);
	if (sna->render.vertex_offset) {
		gen4_vertex_flush(sna);
        gen6_magic_ca_pass(sna, op);
    }
 
 
}
 
#if 0
static bool
gen6_composite_set_target(struct sna *sna,
			  struct sna_composite_op *op,
			  PicturePtr dst,
			  int x, int y, int w, int h,
			  bool partial)
{
	BoxRec box;
 
	op->dst.pixmap = get_drawable_pixmap(dst->pDrawable);
	op->dst.format = dst->format;
	op->dst.width = op->dst.pixmap->drawable.width;
	op->dst.height = op->dst.pixmap->drawable.height;
 
	if (w && h) {
		box.x1 = x;
		box.y1 = y;
		box.x2 = x + w;
		box.y2 = y + h;
	} else
		sna_render_picture_extents(dst, &box);
 
//	op->dst.bo = sna_drawable_use_bo (dst->pDrawable,
//					  PREFER_GPU | FORCE_GPU | RENDER_GPU,
//					  &box, &op->damage);
	if (op->dst.bo == NULL)
		return false;
 
	get_drawable_deltas(dst->pDrawable, op->dst.pixmap,
			    &op->dst.x, &op->dst.y);
 
	DBG(("%s: pixmap=%p, format=%08x, size=%dx%d, pitch=%d, delta=(%d,%d),damage=%p\n",
	     __FUNCTION__,
	     op->dst.pixmap, (int)op->dst.format,
	     op->dst.width, op->dst.height,
	     op->dst.bo->pitch,
	     op->dst.x, op->dst.y,
	     op->damage ? *op->damage : (void *)-1));
 
	assert(op->dst.bo->proxy == NULL);
 
	if (too_large(op->dst.width, op->dst.height) &&
	    !sna_render_composite_redirect(sna, op, x, y, w, h))
		return false;
 
	return true;
}
 
static bool
prefer_blt_composite(struct sna *sna, struct sna_composite_op *tmp)
{
	if (untiled_tlb_miss(tmp->dst.bo) ||
	    untiled_tlb_miss(tmp->src.bo))
		return true;
 
	if (kgem_bo_is_render(tmp->dst.bo) ||
	    kgem_bo_is_render(tmp->src.bo))
		return false;
 
	if (!prefer_blt_ring(sna, tmp->dst.bo, 0))
		return false;
 
	return prefer_blt_bo(sna, tmp->dst.bo) || prefer_blt_bo(sna, tmp->src.bo);
}
 
static bool
gen6_render_composite(struct sna *sna,
              uint8_t op,
		      PicturePtr src,
		      PicturePtr mask,
		      PicturePtr dst,
              int16_t src_x, int16_t src_y,
              int16_t msk_x, int16_t msk_y,
              int16_t dst_x, int16_t dst_y,
              int16_t width, int16_t height,
              struct sna_composite_op *tmp)
{
	if (op >= ARRAY_SIZE(gen6_blend_op))
		return false;
 
    DBG(("%s: %dx%d, current mode=%d\n", __FUNCTION__,
         width, height, sna->kgem.ring));
 
	if (mask == NULL &&
	    try_blt(sna, dst, src, width, height) &&
	    sna_blt_composite(sna, op,
			      src, dst,
			      src_x, src_y,
			      dst_x, dst_y,
			      width, height,
			      tmp, false))
		return true;
 
	if (gen6_composite_fallback(sna, src, mask, dst))
		return false;
 
	if (need_tiling(sna, width, height))
		return sna_tiling_composite(op, src, mask, dst,
					    src_x, src_y,
					    msk_x, msk_y,
					    dst_x, dst_y,
					    width, height,
					    tmp);
 
	if (op == PictOpClear)
		op = PictOpSrc;
	tmp->op = op;
	if (!gen6_composite_set_target(sna, tmp, dst,
				       dst_x, dst_y, width, height,
				       op > PictOpSrc || dst->pCompositeClip->data))
		return false;
 
	switch (gen6_composite_picture(sna, src, &tmp->src,
				       src_x, src_y,
				       width, height,
				       dst_x, dst_y,
				       dst->polyMode == PolyModePrecise)) {
	case -1:
		goto cleanup_dst;
	case 0:
		if (!gen4_channel_init_solid(sna, &tmp->src, 0))
			goto cleanup_dst;
		/* fall through to fixup */
	case 1:
		/* Did we just switch rings to prepare the source? */
		if (mask == NULL &&
		    prefer_blt_composite(sna, tmp) &&
		    sna_blt_composite__convert(sna,
					       dst_x, dst_y, width, height,
					       tmp))
			return true;
 
		gen6_composite_channel_convert(&tmp->src);
		break;
	}
 
	tmp->is_affine = tmp->src.is_affine;
	tmp->has_component_alpha = false;
	tmp->need_magic_ca_pass = false;
 
	tmp->mask.bo = NULL;
    tmp->mask.filter = SAMPLER_FILTER_NEAREST;
    tmp->mask.repeat = SAMPLER_EXTEND_NONE;
 
	if (mask) {
		if (mask->componentAlpha && PICT_FORMAT_RGB(mask->format)) {
			tmp->has_component_alpha = true;
 
			/* Check if it's component alpha that relies on a source alpha and on
			 * the source value.  We can only get one of those into the single
			 * source value that we get to blend with.
			 */
			if (gen6_blend_op[op].src_alpha &&
			    (gen6_blend_op[op].src_blend != GEN6_BLENDFACTOR_ZERO)) {
				if (op != PictOpOver)
					goto cleanup_src;
 
				tmp->need_magic_ca_pass = true;
				tmp->op = PictOpOutReverse;
			}
		}
 
		if (!reuse_source(sna,
				  src, &tmp->src, src_x, src_y,
				  mask, &tmp->mask, msk_x, msk_y)) {
			switch (gen6_composite_picture(sna, mask, &tmp->mask,
						       msk_x, msk_y,
						       width, height,
						       dst_x, dst_y,
						       dst->polyMode == PolyModePrecise)) {
			case -1:
				goto cleanup_src;
			case 0:
				if (!gen4_channel_init_solid(sna, &tmp->mask, 0))
					goto cleanup_src;
				/* fall through to fixup */
			case 1:
				gen6_composite_channel_convert(&tmp->mask);
				break;
			}
		}
 
		tmp->is_affine &= tmp->mask.is_affine;
	}
 
	tmp->u.gen6.flags =
		GEN6_SET_FLAGS(SAMPLER_OFFSET(tmp->src.filter,
					      tmp->src.repeat,
					      tmp->mask.filter,
					      tmp->mask.repeat),
			       gen6_get_blend(tmp->op,
					      tmp->has_component_alpha,
					      tmp->dst.format),
			       gen6_choose_composite_kernel(tmp->op,
							    tmp->mask.bo != NULL,
							    tmp->has_component_alpha,
							    tmp->is_affine),
			       gen4_choose_composite_emitter(sna, tmp));
 
	tmp->blt   = gen6_render_composite_blt;
	tmp->box   = gen6_render_composite_box;
	tmp->boxes = gen6_render_composite_boxes__blt;
	if (tmp->emit_boxes) {
		tmp->boxes = gen6_render_composite_boxes;
		tmp->thread_boxes = gen6_render_composite_boxes__thread;
	}
	tmp->done  = gen6_render_composite_done;
 
	kgem_set_mode(&sna->kgem, KGEM_RENDER, tmp->dst.bo);
	if (!kgem_check_bo(&sna->kgem,
			   tmp->dst.bo, tmp->src.bo, tmp->mask.bo,
			   NULL)) {
		kgem_submit(&sna->kgem);
		if (!kgem_check_bo(&sna->kgem,
				   tmp->dst.bo, tmp->src.bo, tmp->mask.bo,
				   NULL))
			goto cleanup_mask;
		_kgem_set_mode(&sna->kgem, KGEM_RENDER);
	}
 
    gen6_emit_composite_state(sna, tmp);
    gen6_align_vertex(sna, tmp);
	return true;
 
cleanup_mask:
	if (tmp->mask.bo)
		kgem_bo_destroy(&sna->kgem, tmp->mask.bo);
cleanup_src:
	if (tmp->src.bo)
		kgem_bo_destroy(&sna->kgem, tmp->src.bo);
cleanup_dst:
	if (tmp->redirect.real_bo)
		kgem_bo_destroy(&sna->kgem, tmp->dst.bo);
	return false;
}
 
#if !NO_COMPOSITE_SPANS
fastcall static void
gen6_render_composite_spans_box(struct sna *sna,
				const struct sna_composite_spans_op *op,
				const BoxRec *box, float opacity)
{
	DBG(("%s: src=+(%d, %d), opacity=%f, dst=+(%d, %d), box=(%d, %d) x (%d, %d)\n",
	     __FUNCTION__,
	     op->base.src.offset[0], op->base.src.offset[1],
	     opacity,
	     op->base.dst.x, op->base.dst.y,
	     box->x1, box->y1,
	     box->x2 - box->x1,
	     box->y2 - box->y1));
 
	gen6_get_rectangles(sna, &op->base, 1, gen6_emit_composite_state);
	op->prim_emit(sna, op, box, opacity);
}
 
static void
gen6_render_composite_spans_boxes(struct sna *sna,
				  const struct sna_composite_spans_op *op,
				  const BoxRec *box, int nbox,
				  float opacity)
{
	DBG(("%s: nbox=%d, src=+(%d, %d), opacity=%f, dst=+(%d, %d)\n",
	     __FUNCTION__, nbox,
	     op->base.src.offset[0], op->base.src.offset[1],
	     opacity,
	     op->base.dst.x, op->base.dst.y));
 
	do {
		int nbox_this_time;
 
		nbox_this_time = gen6_get_rectangles(sna, &op->base, nbox,
						     gen6_emit_composite_state);
		nbox -= nbox_this_time;
 
		do {
			DBG(("  %s: (%d, %d) x (%d, %d)\n", __FUNCTION__,
			     box->x1, box->y1,
			     box->x2 - box->x1,
			     box->y2 - box->y1));
 
			op->prim_emit(sna, op, box++, opacity);
		} while (--nbox_this_time);
	} while (nbox);
}
 
fastcall static void
gen6_render_composite_spans_boxes__thread(struct sna *sna,
					  const struct sna_composite_spans_op *op,
					  const struct sna_opacity_box *box,
					  int nbox)
{
	DBG(("%s: nbox=%d, src=+(%d, %d), dst=+(%d, %d)\n",
	     __FUNCTION__, nbox,
	     op->base.src.offset[0], op->base.src.offset[1],
	     op->base.dst.x, op->base.dst.y));
 
	sna_vertex_lock(&sna->render);
	do {
		int nbox_this_time;
		float *v;
 
		nbox_this_time = gen6_get_rectangles(sna, &op->base, nbox,
						     gen6_emit_composite_state);
		assert(nbox_this_time);
		nbox -= nbox_this_time;
 
		v = sna->render.vertices + sna->render.vertex_used;
		sna->render.vertex_used += nbox_this_time * op->base.floats_per_rect;
 
		sna_vertex_acquire__locked(&sna->render);
		sna_vertex_unlock(&sna->render);
 
		op->emit_boxes(op, box, nbox_this_time, v);
		box += nbox_this_time;
 
		sna_vertex_lock(&sna->render);
		sna_vertex_release__locked(&sna->render);
	} while (nbox);
	sna_vertex_unlock(&sna->render);
}
 
fastcall static void
gen6_render_composite_spans_done(struct sna *sna,
				 const struct sna_composite_spans_op *op)
{
	DBG(("%s()\n", __FUNCTION__));
	assert(!sna->render.active);
 
	if (sna->render.vertex_offset)
		gen4_vertex_flush(sna);
 
	if (op->base.src.bo)
		kgem_bo_destroy(&sna->kgem, op->base.src.bo);
 
	sna_render_composite_redirect_done(sna, &op->base);
}
 
static bool
gen6_check_composite_spans(struct sna *sna,
			   uint8_t op, PicturePtr src, PicturePtr dst,
			   int16_t width, int16_t height,
			   unsigned flags)
{
	DBG(("%s: op=%d, width=%d, height=%d, flags=%x\n",
	     __FUNCTION__, op, width, height, flags));
 
	if (op >= ARRAY_SIZE(gen6_blend_op))
		return false;
 
	if (gen6_composite_fallback(sna, src, NULL, dst)) {
		DBG(("%s: operation would fallback\n", __FUNCTION__));
		return false;
	}
 
	if (need_tiling(sna, width, height) &&
	    !is_gpu(sna, dst->pDrawable, PREFER_GPU_SPANS)) {
		DBG(("%s: fallback, tiled operation not on GPU\n",
		     __FUNCTION__));
		return false;
	}
 
	if ((flags & COMPOSITE_SPANS_RECTILINEAR) == 0) {
		struct sna_pixmap *priv = sna_pixmap_from_drawable(dst->pDrawable);
		assert(priv);
 
		if (priv->cpu_bo && kgem_bo_is_busy(priv->cpu_bo))
			return true;
 
		if (flags & COMPOSITE_SPANS_INPLACE_HINT)
			return false;
 
		return priv->gpu_bo && kgem_bo_is_busy(priv->gpu_bo);
	}
 
	return true;
}
 
static bool
gen6_render_composite_spans(struct sna *sna,
			    uint8_t op,
			    PicturePtr src,
			    PicturePtr dst,
			    int16_t src_x,  int16_t src_y,
			    int16_t dst_x,  int16_t dst_y,
			    int16_t width,  int16_t height,
			    unsigned flags,
			    struct sna_composite_spans_op *tmp)
{
	DBG(("%s: %dx%d with flags=%x, current mode=%d\n", __FUNCTION__,
	     width, height, flags, sna->kgem.ring));
 
	assert(gen6_check_composite_spans(sna, op, src, dst, width, height, flags));
 
	if (need_tiling(sna, width, height)) {
		DBG(("%s: tiling, operation (%dx%d) too wide for pipeline\n",
		     __FUNCTION__, width, height));
		return sna_tiling_composite_spans(op, src, dst,
						  src_x, src_y, dst_x, dst_y,
						  width, height, flags, tmp);
	}
 
	tmp->base.op = op;
	if (!gen6_composite_set_target(sna, &tmp->base, dst,
				       dst_x, dst_y, width, height, true))
		return false;
 
	switch (gen6_composite_picture(sna, src, &tmp->base.src,
				       src_x, src_y,
				       width, height,
				       dst_x, dst_y,
				       dst->polyMode == PolyModePrecise)) {
	case -1:
		goto cleanup_dst;
	case 0:
		if (!gen4_channel_init_solid(sna, &tmp->base.src, 0))
			goto cleanup_dst;
		/* fall through to fixup */
	case 1:
		gen6_composite_channel_convert(&tmp->base.src);
		break;
	}
	tmp->base.mask.bo = NULL;
 
	tmp->base.is_affine = tmp->base.src.is_affine;
	tmp->base.need_magic_ca_pass = false;
 
	tmp->base.u.gen6.flags =
		GEN6_SET_FLAGS(SAMPLER_OFFSET(tmp->base.src.filter,
					      tmp->base.src.repeat,
					      SAMPLER_FILTER_NEAREST,
					      SAMPLER_EXTEND_PAD),
			       gen6_get_blend(tmp->base.op, false, tmp->base.dst.format),
			       GEN6_WM_KERNEL_OPACITY | !tmp->base.is_affine,
			       gen4_choose_spans_emitter(sna, tmp));
 
	tmp->box   = gen6_render_composite_spans_box;
	tmp->boxes = gen6_render_composite_spans_boxes;
	if (tmp->emit_boxes)
		tmp->thread_boxes = gen6_render_composite_spans_boxes__thread;
	tmp->done  = gen6_render_composite_spans_done;
 
	kgem_set_mode(&sna->kgem, KGEM_RENDER, tmp->base.dst.bo);
	if (!kgem_check_bo(&sna->kgem,
			   tmp->base.dst.bo, tmp->base.src.bo,
			   NULL)) {
		kgem_submit(&sna->kgem);
		if (!kgem_check_bo(&sna->kgem,
				   tmp->base.dst.bo, tmp->base.src.bo,
				   NULL))
			goto cleanup_src;
		_kgem_set_mode(&sna->kgem, KGEM_RENDER);
	}
 
	gen6_emit_composite_state(sna, &tmp->base);
	gen6_align_vertex(sna, &tmp->base);
	return true;
 
cleanup_src:
	if (tmp->base.src.bo)
		kgem_bo_destroy(&sna->kgem, tmp->base.src.bo);
cleanup_dst:
	if (tmp->base.redirect.real_bo)
		kgem_bo_destroy(&sna->kgem, tmp->base.dst.bo);
	return false;
}
#endif
 
static void
gen6_emit_copy_state(struct sna *sna,
		     const struct sna_composite_op *op)
{
	uint32_t *binding_table;
	uint16_t offset;
	bool dirty;
 
	dirty = gen6_get_batch(sna, op);
 
	binding_table = gen6_composite_get_binding_table(sna, &offset);
 
	binding_table[0] =
		gen6_bind_bo(sna,
			     op->dst.bo, op->dst.width, op->dst.height,
			     gen6_get_dest_format(op->dst.format),
			     true);
	binding_table[1] =
		gen6_bind_bo(sna,
			     op->src.bo, op->src.width, op->src.height,
			     op->src.card_format,
			     false);
 
	if (sna->kgem.surface == offset &&
	    *(uint64_t *)(sna->kgem.batch + sna->render_state.gen6.surface_table) == *(uint64_t*)binding_table) {
		sna->kgem.surface += sizeof(struct gen6_surface_state_padded) / sizeof(uint32_t);
		offset = sna->render_state.gen6.surface_table;
	}
 
	gen6_emit_state(sna, op, offset | dirty);
}
 
static inline bool prefer_blt_copy(struct sna *sna,
				   struct kgem_bo *src_bo,
				   struct kgem_bo *dst_bo,
				   unsigned flags)
{
	if (flags & COPY_SYNC)
		return false;
 
	if (PREFER_RENDER)
		return PREFER_RENDER > 0;
 
	if (sna->kgem.ring == KGEM_BLT)
		return true;
 
	if (src_bo == dst_bo && can_switch_to_blt(sna, dst_bo, flags))
		return true;
 
	if (untiled_tlb_miss(src_bo) ||
	    untiled_tlb_miss(dst_bo))
		return true;
 
	if (kgem_bo_is_render(dst_bo) ||
	    kgem_bo_is_render(src_bo))
		return false;
 
	if (!prefer_blt_ring(sna, dst_bo, flags))
		return false;
 
	return prefer_blt_bo(sna, src_bo) || prefer_blt_bo(sna, dst_bo);
}
 
inline static void boxes_extents(const BoxRec *box, int n, BoxRec *extents)
{
	*extents = box[0];
	while (--n) {
		box++;
 
		if (box->x1 < extents->x1)
			extents->x1 = box->x1;
		if (box->x2 > extents->x2)
			extents->x2 = box->x2;
 
		if (box->y1 < extents->y1)
			extents->y1 = box->y1;
		if (box->y2 > extents->y2)
			extents->y2 = box->y2;
	}
}
 
static inline bool
overlaps(struct sna *sna,
	 struct kgem_bo *src_bo, int16_t src_dx, int16_t src_dy,
	 struct kgem_bo *dst_bo, int16_t dst_dx, int16_t dst_dy,
	 const BoxRec *box, int n, BoxRec *extents)
{
	if (src_bo != dst_bo)
		return false;
 
	boxes_extents(box, n, extents);
	return (extents->x2 + src_dx > extents->x1 + dst_dx &&
		extents->x1 + src_dx < extents->x2 + dst_dx &&
		extents->y2 + src_dy > extents->y1 + dst_dy &&
		extents->y1 + src_dy < extents->y2 + dst_dy);
}
 
static bool
gen6_render_copy_boxes(struct sna *sna, uint8_t alu,
		       PixmapPtr src, struct kgem_bo *src_bo, int16_t src_dx, int16_t src_dy,
		       PixmapPtr dst, struct kgem_bo *dst_bo, int16_t dst_dx, int16_t dst_dy,
		       const BoxRec *box, int n, unsigned flags)
{
	struct sna_composite_op tmp;
	BoxRec extents;
 
	DBG(("%s (%d, %d)->(%d, %d) x %d, alu=%x, self-copy=%d, overlaps? %d\n",
	     __FUNCTION__, src_dx, src_dy, dst_dx, dst_dy, n, alu,
	     src_bo == dst_bo,
	     overlaps(sna,
		      src_bo, src_dx, src_dy,
		      dst_bo, dst_dx, dst_dy,
		      box, n, &extents)));
 
	if (prefer_blt_copy(sna, src_bo, dst_bo, flags) &&
	    sna_blt_compare_depth(&src->drawable, &dst->drawable) &&
	    sna_blt_copy_boxes(sna, alu,
			       src_bo, src_dx, src_dy,
			       dst_bo, dst_dx, dst_dy,
			       dst->drawable.bitsPerPixel,
			       box, n))
		return true;
 
	if (!(alu == GXcopy || alu == GXclear)) {
fallback_blt:
		if (!sna_blt_compare_depth(&src->drawable, &dst->drawable))
			return false;
 
		return sna_blt_copy_boxes_fallback(sna, alu,
						   src, src_bo, src_dx, src_dy,
						   dst, dst_bo, dst_dx, dst_dy,
						   box, n);
	}
 
	if (overlaps(sna,
		     src_bo, src_dx, src_dy,
		     dst_bo, dst_dx, dst_dy,
		     box, n, &extents)) {
		if (too_large(extents.x2-extents.x1, extents.y2-extents.y1))
			goto fallback_blt;
 
		if (can_switch_to_blt(sna, dst_bo, flags) &&
		    sna_blt_compare_depth(&src->drawable, &dst->drawable) &&
		    sna_blt_copy_boxes(sna, alu,
				       src_bo, src_dx, src_dy,
				       dst_bo, dst_dx, dst_dy,
				       dst->drawable.bitsPerPixel,
				       box, n))
			return true;
 
		return sna_render_copy_boxes__overlap(sna, alu,
						      src, src_bo, src_dx, src_dy,
						      dst, dst_bo, dst_dx, dst_dy,
						      box, n, &extents);
	}
 
	if (dst->drawable.depth == src->drawable.depth) {
		tmp.dst.format = sna_render_format_for_depth(dst->drawable.depth);
		tmp.src.pict_format = tmp.dst.format;
	} else {
		tmp.dst.format = sna_format_for_depth(dst->drawable.depth);
		tmp.src.pict_format = sna_format_for_depth(src->drawable.depth);
	}
	if (!gen6_check_format(tmp.src.pict_format))
		goto fallback_blt;
 
	tmp.dst.pixmap = dst;
	tmp.dst.width  = dst->drawable.width;
	tmp.dst.height = dst->drawable.height;
	tmp.dst.bo = dst_bo;
	tmp.dst.x = tmp.dst.y = 0;
	tmp.damage = NULL;
 
	sna_render_composite_redirect_init(&tmp);
	if (too_large(tmp.dst.width, tmp.dst.height)) {
		int i;
 
		extents = box[0];
		for (i = 1; i < n; i++) {
			if (box[i].x1 < extents.x1)
				extents.x1 = box[i].x1;
			if (box[i].y1 < extents.y1)
				extents.y1 = box[i].y1;
 
			if (box[i].x2 > extents.x2)
				extents.x2 = box[i].x2;
			if (box[i].y2 > extents.y2)
				extents.y2 = box[i].y2;
		}
 
		if (!sna_render_composite_redirect(sna, &tmp,
						   extents.x1 + dst_dx,
						   extents.y1 + dst_dy,
						   extents.x2 - extents.x1,
						   extents.y2 - extents.y1,
						   n > 1))
			goto fallback_tiled;
 
		dst_dx += tmp.dst.x;
		dst_dy += tmp.dst.y;
 
		tmp.dst.x = tmp.dst.y = 0;
	}
 
	tmp.src.card_format = gen6_get_card_format(tmp.src.pict_format);
	if (too_large(src->drawable.width, src->drawable.height)) {
		int i;
 
		extents = box[0];
		for (i = 1; i < n; i++) {
			if (box[i].x1 < extents.x1)
				extents.x1 = box[i].x1;
			if (box[i].y1 < extents.y1)
				extents.y1 = box[i].y1;
 
			if (box[i].x2 > extents.x2)
				extents.x2 = box[i].x2;
			if (box[i].y2 > extents.y2)
				extents.y2 = box[i].y2;
		}
 
		if (!sna_render_pixmap_partial(sna, src, src_bo, &tmp.src,
					       extents.x1 + src_dx,
					       extents.y1 + src_dy,
					       extents.x2 - extents.x1,
					       extents.y2 - extents.y1)) {
			DBG(("%s: unable to extract partial pixmap\n", __FUNCTION__));
			goto fallback_tiled_dst;
		}
 
		src_dx += tmp.src.offset[0];
		src_dy += tmp.src.offset[1];
	} else {
		tmp.src.bo = src_bo;
		tmp.src.width  = src->drawable.width;
		tmp.src.height = src->drawable.height;
	}
 
	tmp.mask.bo = NULL;
 
	tmp.floats_per_vertex = 2;
	tmp.floats_per_rect = 6;
	tmp.need_magic_ca_pass = 0;
 
	tmp.u.gen6.flags = COPY_FLAGS(alu);
	assert(GEN6_KERNEL(tmp.u.gen6.flags) == GEN6_WM_KERNEL_NOMASK);
	assert(GEN6_SAMPLER(tmp.u.gen6.flags) == COPY_SAMPLER);
	assert(GEN6_VERTEX(tmp.u.gen6.flags) == COPY_VERTEX);
 
	kgem_set_mode(&sna->kgem, KGEM_RENDER, tmp.dst.bo);
	if (!kgem_check_bo(&sna->kgem, tmp.dst.bo, tmp.src.bo, NULL)) {
		kgem_submit(&sna->kgem);
		if (!kgem_check_bo(&sna->kgem, tmp.dst.bo, tmp.src.bo, NULL)) {
			DBG(("%s: too large for a single operation\n",
			     __FUNCTION__));
			goto fallback_tiled_src;
		}
		_kgem_set_mode(&sna->kgem, KGEM_RENDER);
	}
 
	gen6_emit_copy_state(sna, &tmp);
	gen6_align_vertex(sna, &tmp);
 
	do {
		int16_t *v;
		int n_this_time;
 
		n_this_time = gen6_get_rectangles(sna, &tmp, n,
						  gen6_emit_copy_state);
		n -= n_this_time;
 
		v = (int16_t *)(sna->render.vertices + sna->render.vertex_used);
		sna->render.vertex_used += 6 * n_this_time;
		assert(sna->render.vertex_used <= sna->render.vertex_size);
		do {
 
			DBG(("	(%d, %d) -> (%d, %d) + (%d, %d)\n",
			     box->x1 + src_dx, box->y1 + src_dy,
			     box->x1 + dst_dx, box->y1 + dst_dy,
			     box->x2 - box->x1, box->y2 - box->y1));
			v[0] = box->x2 + dst_dx;
			v[2] = box->x2 + src_dx;
			v[1]  = v[5] = box->y2 + dst_dy;
			v[3]  = v[7] = box->y2 + src_dy;
			v[8]  = v[4] = box->x1 + dst_dx;
			v[10] = v[6] = box->x1 + src_dx;
			v[9]  = box->y1 + dst_dy;
			v[11] = box->y1 + src_dy;
			v += 12; box++;
		} while (--n_this_time);
	} while (n);
 
	gen4_vertex_flush(sna);
	sna_render_composite_redirect_done(sna, &tmp);
	if (tmp.src.bo != src_bo)
		kgem_bo_destroy(&sna->kgem, tmp.src.bo);
	return true;
 
fallback_tiled_src:
	if (tmp.src.bo != src_bo)
		kgem_bo_destroy(&sna->kgem, tmp.src.bo);
fallback_tiled_dst:
	if (tmp.redirect.real_bo)
		kgem_bo_destroy(&sna->kgem, tmp.dst.bo);
fallback_tiled:
	if (sna_blt_compare_depth(&src->drawable, &dst->drawable) &&
	    sna_blt_copy_boxes(sna, alu,
			       src_bo, src_dx, src_dy,
			       dst_bo, dst_dx, dst_dy,
			       dst->drawable.bitsPerPixel,
			       box, n))
		return true;
 
	return sna_tiling_copy_boxes(sna, alu,
				     src, src_bo, src_dx, src_dy,
				     dst, dst_bo, dst_dx, dst_dy,
				     box, n);
}
 
static void
gen6_render_copy_blt(struct sna *sna,
		     const struct sna_copy_op *op,
		     int16_t sx, int16_t sy,
		     int16_t w,  int16_t h,
		     int16_t dx, int16_t dy)
{
	int16_t *v;
 
	gen6_get_rectangles(sna, &op->base, 1, gen6_emit_copy_state);
 
	v = (int16_t *)&sna->render.vertices[sna->render.vertex_used];
	sna->render.vertex_used += 6;
	assert(sna->render.vertex_used <= sna->render.vertex_size);
 
	v[0]  = dx+w; v[1]  = dy+h;
	v[2]  = sx+w; v[3]  = sy+h;
	v[4]  = dx;   v[5]  = dy+h;
	v[6]  = sx;   v[7]  = sy+h;
	v[8]  = dx;   v[9]  = dy;
	v[10] = sx;   v[11] = sy;
}
 
static void
gen6_render_copy_done(struct sna *sna, const struct sna_copy_op *op)
{
	DBG(("%s()\n", __FUNCTION__));
 
	assert(!sna->render.active);
	if (sna->render.vertex_offset)
		gen4_vertex_flush(sna);
}
 
static bool
gen6_render_copy(struct sna *sna, uint8_t alu,
		 PixmapPtr src, struct kgem_bo *src_bo,
		 PixmapPtr dst, struct kgem_bo *dst_bo,
		 struct sna_copy_op *op)
{
	DBG(("%s (alu=%d, src=(%dx%d), dst=(%dx%d))\n",
	     __FUNCTION__, alu,
	     src->drawable.width, src->drawable.height,
	     dst->drawable.width, dst->drawable.height));
 
	if (prefer_blt_copy(sna, src_bo, dst_bo, 0) &&
	    sna_blt_compare_depth(&src->drawable, &dst->drawable) &&
	    sna_blt_copy(sna, alu,
			 src_bo, dst_bo,
			 dst->drawable.bitsPerPixel,
			 op))
		return true;
 
	if (!(alu == GXcopy || alu == GXclear) || src_bo == dst_bo ||
	    too_large(src->drawable.width, src->drawable.height) ||
	    too_large(dst->drawable.width, dst->drawable.height)) {
fallback:
		if (!sna_blt_compare_depth(&src->drawable, &dst->drawable))
			return false;
 
		return sna_blt_copy(sna, alu, src_bo, dst_bo,
				    dst->drawable.bitsPerPixel,
				    op);
	}
 
	if (dst->drawable.depth == src->drawable.depth) {
		op->base.dst.format = sna_render_format_for_depth(dst->drawable.depth);
	op->base.src.pict_format = op->base.dst.format;
	} else {
		op->base.dst.format = sna_format_for_depth(dst->drawable.depth);
		op->base.src.pict_format = sna_format_for_depth(src->drawable.depth);
	}
	if (!gen6_check_format(op->base.src.pict_format))
		goto fallback;
 
	op->base.dst.pixmap = dst;
	op->base.dst.width  = dst->drawable.width;
	op->base.dst.height = dst->drawable.height;
	op->base.dst.bo = dst_bo;
 
	op->base.src.bo = src_bo;
	op->base.src.card_format =
		gen6_get_card_format(op->base.src.pict_format);
	op->base.src.width  = src->drawable.width;
	op->base.src.height = src->drawable.height;
 
	op->base.mask.bo = NULL;
 
	op->base.floats_per_vertex = 2;
	op->base.floats_per_rect = 6;
 
	op->base.u.gen6.flags = COPY_FLAGS(alu);
	assert(GEN6_KERNEL(op->base.u.gen6.flags) == GEN6_WM_KERNEL_NOMASK);
	assert(GEN6_SAMPLER(op->base.u.gen6.flags) == COPY_SAMPLER);
	assert(GEN6_VERTEX(op->base.u.gen6.flags) == COPY_VERTEX);
 
	kgem_set_mode(&sna->kgem, KGEM_RENDER, dst_bo);
	if (!kgem_check_bo(&sna->kgem, dst_bo, src_bo, NULL)) {
		kgem_submit(&sna->kgem);
		if (!kgem_check_bo(&sna->kgem, dst_bo, src_bo, NULL))
			goto fallback;
		_kgem_set_mode(&sna->kgem, KGEM_RENDER);
	}
 
	gen6_emit_copy_state(sna, &op->base);
	gen6_align_vertex(sna, &op->base);
 
	op->blt  = gen6_render_copy_blt;
	op->done = gen6_render_copy_done;
	return true;
}
 
 
 
static void
gen6_emit_fill_state(struct sna *sna, const struct sna_composite_op *op)
{
	uint32_t *binding_table;
	uint16_t offset;
	bool dirty;
 
	dirty = gen6_get_batch(sna, op);
 
	binding_table = gen6_composite_get_binding_table(sna, &offset);
 
	binding_table[0] =
		gen6_bind_bo(sna,
			     op->dst.bo, op->dst.width, op->dst.height,
			     gen6_get_dest_format(op->dst.format),
			     true);
	binding_table[1] =
		gen6_bind_bo(sna,
			     op->src.bo, 1, 1,
			     GEN6_SURFACEFORMAT_B8G8R8A8_UNORM,
			     false);
 
	if (sna->kgem.surface == offset &&
	    *(uint64_t *)(sna->kgem.batch + sna->render_state.gen6.surface_table) == *(uint64_t*)binding_table) {
		sna->kgem.surface +=
			sizeof(struct gen6_surface_state_padded)/sizeof(uint32_t);
		offset = sna->render_state.gen6.surface_table;
	}
 
	gen6_emit_state(sna, op, offset | dirty);
}
 
static inline bool prefer_blt_fill(struct sna *sna,
				   struct kgem_bo *bo)
{
	if (PREFER_RENDER)
		return PREFER_RENDER < 0;
 
	if (kgem_bo_is_render(bo))
		return false;
 
	if (untiled_tlb_miss(bo))
		return true;
 
	if (!prefer_blt_ring(sna, bo, 0))
		return false;
 
	return prefer_blt_bo(sna, bo);
}
 
static bool
gen6_render_fill_boxes(struct sna *sna,
		       CARD8 op,
		       PictFormat format,
		       const xRenderColor *color,
		       PixmapPtr dst, struct kgem_bo *dst_bo,
		       const BoxRec *box, int n)
{
	struct sna_composite_op tmp;
	uint32_t pixel;
 
	DBG(("%s (op=%d, color=(%04x, %04x, %04x, %04x) [%08x])\n",
	     __FUNCTION__, op,
	     color->red, color->green, color->blue, color->alpha, (int)format));
 
	if (op >= ARRAY_SIZE(gen6_blend_op)) {
		DBG(("%s: fallback due to unhandled blend op: %d\n",
		     __FUNCTION__, op));
		return false;
	}
 
	if (prefer_blt_fill(sna, dst_bo) || !gen6_check_dst_format(format)) {
		uint8_t alu = GXinvalid;
 
		if (op <= PictOpSrc) {
			pixel = 0;
			if (op == PictOpClear)
				alu = GXclear;
			else if (sna_get_pixel_from_rgba(&pixel,
							 color->red,
							 color->green,
							 color->blue,
							 color->alpha,
							 format))
				alu = GXcopy;
		}
 
		if (alu != GXinvalid &&
		    sna_blt_fill_boxes(sna, alu,
				       dst_bo, dst->drawable.bitsPerPixel,
				       pixel, box, n))
			return true;
 
		if (!gen6_check_dst_format(format))
			return false;
	}
 
	if (op == PictOpClear) {
		pixel = 0;
		op = PictOpSrc;
	} else if (!sna_get_pixel_from_rgba(&pixel,
					    color->red,
					    color->green,
					    color->blue,
					    color->alpha,
					    PICT_a8r8g8b8))
		return false;
 
	DBG(("%s(%08x x %d [(%d, %d), (%d, %d) ...])\n",
	     __FUNCTION__, pixel, n,
	     box[0].x1, box[0].y1, box[0].x2, box[0].y2));
 
	tmp.dst.pixmap = dst;
	tmp.dst.width  = dst->drawable.width;
	tmp.dst.height = dst->drawable.height;
	tmp.dst.format = format;
	tmp.dst.bo = dst_bo;
	tmp.dst.x = tmp.dst.y = 0;
	tmp.damage = NULL;
 
	sna_render_composite_redirect_init(&tmp);
	if (too_large(dst->drawable.width, dst->drawable.height)) {
		BoxRec extents;
 
		boxes_extents(box, n, &extents);
		if (!sna_render_composite_redirect(sna, &tmp,
						   extents.x1, extents.y1,
						   extents.x2 - extents.x1,
						   extents.y2 - extents.y1,
						   n > 1))
			return sna_tiling_fill_boxes(sna, op, format, color,
						     dst, dst_bo, box, n);
	}
 
	tmp.src.bo = sna_render_get_solid(sna, pixel);
	tmp.mask.bo = NULL;
 
	tmp.floats_per_vertex = 2;
	tmp.floats_per_rect = 6;
	tmp.need_magic_ca_pass = false;
 
	tmp.u.gen6.flags = FILL_FLAGS(op, format);
	assert(GEN6_KERNEL(tmp.u.gen6.flags) == GEN6_WM_KERNEL_NOMASK);
	assert(GEN6_SAMPLER(tmp.u.gen6.flags) == FILL_SAMPLER);
	assert(GEN6_VERTEX(tmp.u.gen6.flags) == FILL_VERTEX);
 
	if (!kgem_check_bo(&sna->kgem, dst_bo, NULL)) {
		kgem_submit(&sna->kgem);
		assert(kgem_check_bo(&sna->kgem, dst_bo, NULL));
	}
 
	gen6_emit_fill_state(sna, &tmp);
	gen6_align_vertex(sna, &tmp);
 
	do {
		int n_this_time;
		int16_t *v;
 
		n_this_time = gen6_get_rectangles(sna, &tmp, n,
						  gen6_emit_fill_state);
		n -= n_this_time;
 
		v = (int16_t *)(sna->render.vertices + sna->render.vertex_used);
		sna->render.vertex_used += 6 * n_this_time;
		assert(sna->render.vertex_used <= sna->render.vertex_size);
		do {
			DBG(("	(%d, %d), (%d, %d)\n",
			     box->x1, box->y1, box->x2, box->y2));
 
			v[0] = box->x2;
			v[5] = v[1] = box->y2;
			v[8] = v[4] = box->x1;
			v[9] = box->y1;
			v[2] = v[3]  = v[7]  = 1;
			v[6] = v[10] = v[11] = 0;
			v += 12; box++;
		} while (--n_this_time);
	} while (n);
 
	gen4_vertex_flush(sna);
	kgem_bo_destroy(&sna->kgem, tmp.src.bo);
	sna_render_composite_redirect_done(sna, &tmp);
	return true;
}
 
static void
gen6_render_op_fill_blt(struct sna *sna,
			const struct sna_fill_op *op,
			int16_t x, int16_t y, int16_t w, int16_t h)
{
	int16_t *v;
 
	DBG(("%s: (%d, %d)x(%d, %d)\n", __FUNCTION__, x, y, w, h));
 
	gen6_get_rectangles(sna, &op->base, 1, gen6_emit_fill_state);
 
	v = (int16_t *)&sna->render.vertices[sna->render.vertex_used];
	sna->render.vertex_used += 6;
	assert(sna->render.vertex_used <= sna->render.vertex_size);
 
	v[0] = x+w;
	v[4] = v[8] = x;
	v[1] = v[5] = y+h;
	v[9] = y;
 
	v[2] = v[3]  = v[7]  = 1;
	v[6] = v[10] = v[11] = 0;
}
 
fastcall static void
gen6_render_op_fill_box(struct sna *sna,
			const struct sna_fill_op *op,
			const BoxRec *box)
{
	int16_t *v;
 
	DBG(("%s: (%d, %d),(%d, %d)\n", __FUNCTION__,
	     box->x1, box->y1, box->x2, box->y2));
 
	gen6_get_rectangles(sna, &op->base, 1, gen6_emit_fill_state);
 
	v = (int16_t *)&sna->render.vertices[sna->render.vertex_used];
	sna->render.vertex_used += 6;
	assert(sna->render.vertex_used <= sna->render.vertex_size);
 
	v[0] = box->x2;
	v[8] = v[4] = box->x1;
	v[5] = v[1] = box->y2;
	v[9] = box->y1;
 
	v[7] = v[2]  = v[3]  = 1;
	v[6] = v[10] = v[11] = 0;
}
 
fastcall static void
gen6_render_op_fill_boxes(struct sna *sna,
			  const struct sna_fill_op *op,
			  const BoxRec *box,
			  int nbox)
{
	DBG(("%s: (%d, %d),(%d, %d)... x %d\n", __FUNCTION__,
	     box->x1, box->y1, box->x2, box->y2, nbox));
 
	do {
		int nbox_this_time;
		int16_t *v;
 
		nbox_this_time = gen6_get_rectangles(sna, &op->base, nbox,
						     gen6_emit_fill_state);
		nbox -= nbox_this_time;
 
		v = (int16_t *)&sna->render.vertices[sna->render.vertex_used];
		sna->render.vertex_used += 6 * nbox_this_time;
		assert(sna->render.vertex_used <= sna->render.vertex_size);
 
		do {
			v[0] = box->x2;
			v[8] = v[4] = box->x1;
			v[5] = v[1] = box->y2;
			v[9] = box->y1;
			v[7] = v[2]  = v[3]  = 1;
			v[6] = v[10] = v[11] = 0;
			box++; v += 12;
		} while (--nbox_this_time);
	} while (nbox);
}
 
static void
gen6_render_op_fill_done(struct sna *sna, const struct sna_fill_op *op)
{
	DBG(("%s()\n", __FUNCTION__));
 
	assert(!sna->render.active);
	if (sna->render.vertex_offset)
		gen4_vertex_flush(sna);
	kgem_bo_destroy(&sna->kgem, op->base.src.bo);
}
 
static bool
gen6_render_fill(struct sna *sna, uint8_t alu,
		 PixmapPtr dst, struct kgem_bo *dst_bo,
		 uint32_t color,
		 struct sna_fill_op *op)
{
	DBG(("%s: (alu=%d, color=%x)\n", __FUNCTION__, alu, color));
 
	if (prefer_blt_fill(sna, dst_bo) &&
	    sna_blt_fill(sna, alu,
			 dst_bo, dst->drawable.bitsPerPixel,
			 color,
			 op))
		return true;
 
	if (!(alu == GXcopy || alu == GXclear) ||
	    too_large(dst->drawable.width, dst->drawable.height))
		return sna_blt_fill(sna, alu,
				    dst_bo, dst->drawable.bitsPerPixel,
				    color,
				    op);
 
	if (alu == GXclear)
		color = 0;
 
	op->base.dst.pixmap = dst;
	op->base.dst.width  = dst->drawable.width;
	op->base.dst.height = dst->drawable.height;
	op->base.dst.format = sna_format_for_depth(dst->drawable.depth);
	op->base.dst.bo = dst_bo;
	op->base.dst.x = op->base.dst.y = 0;
 
	op->base.src.bo =
		sna_render_get_solid(sna,
				     sna_rgba_for_color(color,
							dst->drawable.depth));
	op->base.mask.bo = NULL;
 
	op->base.need_magic_ca_pass = false;
	op->base.floats_per_vertex = 2;
	op->base.floats_per_rect = 6;
 
	op->base.u.gen6.flags = FILL_FLAGS_NOBLEND;
	assert(GEN6_KERNEL(op->base.u.gen6.flags) == GEN6_WM_KERNEL_NOMASK);
	assert(GEN6_SAMPLER(op->base.u.gen6.flags) == FILL_SAMPLER);
	assert(GEN6_VERTEX(op->base.u.gen6.flags) == FILL_VERTEX);
 
	if (!kgem_check_bo(&sna->kgem, dst_bo, NULL)) {
		kgem_submit(&sna->kgem);
		assert(kgem_check_bo(&sna->kgem, dst_bo, NULL));
	}
 
	gen6_emit_fill_state(sna, &op->base);
	gen6_align_vertex(sna, &op->base);
 
	op->blt  = gen6_render_op_fill_blt;
	op->box  = gen6_render_op_fill_box;
	op->boxes = gen6_render_op_fill_boxes;
	op->done = gen6_render_op_fill_done;
	return true;
}
 
static bool
gen6_render_fill_one_try_blt(struct sna *sna, PixmapPtr dst, struct kgem_bo *bo,
			     uint32_t color,
			     int16_t x1, int16_t y1, int16_t x2, int16_t y2,
			     uint8_t alu)
{
	BoxRec box;
 
	box.x1 = x1;
	box.y1 = y1;
	box.x2 = x2;
	box.y2 = y2;
 
	return sna_blt_fill_boxes(sna, alu,
				  bo, dst->drawable.bitsPerPixel,
				  color, &box, 1);
}
 
static bool
gen6_render_fill_one(struct sna *sna, PixmapPtr dst, struct kgem_bo *bo,
		     uint32_t color,
		     int16_t x1, int16_t y1,
		     int16_t x2, int16_t y2,
		     uint8_t alu)
{
	struct sna_composite_op tmp;
	int16_t *v;
 
	/* Prefer to use the BLT if already engaged */
	if (prefer_blt_fill(sna, bo) &&
	    gen6_render_fill_one_try_blt(sna, dst, bo, color,
					 x1, y1, x2, y2, alu))
		return true;
 
	/* Must use the BLT if we can't RENDER... */
	if (!(alu == GXcopy || alu == GXclear) ||
	    too_large(dst->drawable.width, dst->drawable.height))
		return gen6_render_fill_one_try_blt(sna, dst, bo, color,
						    x1, y1, x2, y2, alu);
 
	if (alu == GXclear)
		color = 0;
 
	tmp.dst.pixmap = dst;
	tmp.dst.width  = dst->drawable.width;
	tmp.dst.height = dst->drawable.height;
	tmp.dst.format = sna_format_for_depth(dst->drawable.depth);
	tmp.dst.bo = bo;
	tmp.dst.x = tmp.dst.y = 0;
 
	tmp.src.bo =
		sna_render_get_solid(sna,
				     sna_rgba_for_color(color,
							dst->drawable.depth));
	tmp.mask.bo = NULL;
 
	tmp.floats_per_vertex = 2;
	tmp.floats_per_rect = 6;
	tmp.need_magic_ca_pass = false;
 
	tmp.u.gen6.flags = FILL_FLAGS_NOBLEND;
	assert(GEN6_KERNEL(tmp.u.gen6.flags) == GEN6_WM_KERNEL_NOMASK);
	assert(GEN6_SAMPLER(tmp.u.gen6.flags) == FILL_SAMPLER);
	assert(GEN6_VERTEX(tmp.u.gen6.flags) == FILL_VERTEX);
 
	if (!kgem_check_bo(&sna->kgem, bo, NULL)) {
		kgem_submit(&sna->kgem);
		if (!kgem_check_bo(&sna->kgem, bo, NULL)) {
			kgem_bo_destroy(&sna->kgem, tmp.src.bo);
			return false;
		}
	}
 
	gen6_emit_fill_state(sna, &tmp);
	gen6_align_vertex(sna, &tmp);
 
	gen6_get_rectangles(sna, &tmp, 1, gen6_emit_fill_state);
 
	DBG(("	(%d, %d), (%d, %d)\n", x1, y1, x2, y2));
 
	v = (int16_t *)&sna->render.vertices[sna->render.vertex_used];
	sna->render.vertex_used += 6;
	assert(sna->render.vertex_used <= sna->render.vertex_size);
 
	v[0] = x2;
	v[8] = v[4] = x1;
	v[5] = v[1] = y2;
	v[9] = y1;
	v[7] = v[2]  = v[3]  = 1;
	v[6] = v[10] = v[11] = 0;
 
	gen4_vertex_flush(sna);
	kgem_bo_destroy(&sna->kgem, tmp.src.bo);
 
	return true;
}
 
static bool
gen6_render_clear_try_blt(struct sna *sna, PixmapPtr dst, struct kgem_bo *bo)
{
	BoxRec box;
 
	box.x1 = 0;
	box.y1 = 0;
	box.x2 = dst->drawable.width;
	box.y2 = dst->drawable.height;
 
	return sna_blt_fill_boxes(sna, GXclear,
				  bo, dst->drawable.bitsPerPixel,
				  0, &box, 1);
}
 
static bool
gen6_render_clear(struct sna *sna, PixmapPtr dst, struct kgem_bo *bo)
{
	struct sna_composite_op tmp;
	int16_t *v;
 
	DBG(("%s: %dx%d\n",
	     __FUNCTION__,
	     dst->drawable.width,
	     dst->drawable.height));
 
	/* Prefer to use the BLT if, and only if, already engaged */
	if (sna->kgem.ring == KGEM_BLT &&
	    gen6_render_clear_try_blt(sna, dst, bo))
		return true;
 
	/* Must use the BLT if we can't RENDER... */
	if (too_large(dst->drawable.width, dst->drawable.height))
		return gen6_render_clear_try_blt(sna, dst, bo);
 
	tmp.dst.pixmap = dst;
	tmp.dst.width  = dst->drawable.width;
	tmp.dst.height = dst->drawable.height;
	tmp.dst.format = sna_format_for_depth(dst->drawable.depth);
	tmp.dst.bo = bo;
	tmp.dst.x = tmp.dst.y = 0;
 
	tmp.src.bo = sna_render_get_solid(sna, 0);
	tmp.mask.bo = NULL;
 
	tmp.floats_per_vertex = 2;
	tmp.floats_per_rect = 6;
	tmp.need_magic_ca_pass = false;
 
	tmp.u.gen6.flags = FILL_FLAGS_NOBLEND;
	assert(GEN6_KERNEL(tmp.u.gen6.flags) == GEN6_WM_KERNEL_NOMASK);
	assert(GEN6_SAMPLER(tmp.u.gen6.flags) == FILL_SAMPLER);
	assert(GEN6_VERTEX(tmp.u.gen6.flags) == FILL_VERTEX);
 
	if (!kgem_check_bo(&sna->kgem, bo, NULL)) {
		kgem_submit(&sna->kgem);
		if (!kgem_check_bo(&sna->kgem, bo, NULL)) {
			kgem_bo_destroy(&sna->kgem, tmp.src.bo);
			return false;
		}
	}
 
	gen6_emit_fill_state(sna, &tmp);
	gen6_align_vertex(sna, &tmp);
 
	gen6_get_rectangles(sna, &tmp, 1, gen6_emit_fill_state);
 
	v = (int16_t *)&sna->render.vertices[sna->render.vertex_used];
	sna->render.vertex_used += 6;
	assert(sna->render.vertex_used <= sna->render.vertex_size);
 
	v[0] = dst->drawable.width;
	v[5] = v[1] = dst->drawable.height;
	v[8] = v[4] = 0;
	v[9] = 0;
 
	v[7] = v[2]  = v[3]  = 1;
	v[6] = v[10] = v[11] = 0;
 
	gen4_vertex_flush(sna);
	kgem_bo_destroy(&sna->kgem, tmp.src.bo);
 
	return true;
}
#endif
 
static void gen6_render_flush(struct sna *sna)
{
	gen4_vertex_close(sna);
 
	assert(sna->render.vb_id == 0);
	assert(sna->render.vertex_offset == 0);
}
 
static void
gen6_render_context_switch(struct kgem *kgem,
			   int new_mode)
{
	if (kgem->nbatch) {
		DBG(("%s: from %d to %d\n", __FUNCTION__, kgem->mode, new_mode));
		_kgem_submit(kgem);
	}
 
	kgem->ring = new_mode;
}
 
static void
gen6_render_retire(struct kgem *kgem)
{
	struct sna *sna;
 
	if (kgem->ring && (kgem->has_semaphores || !kgem->need_retire))
		kgem->ring = kgem->mode;
 
	sna = container_of(kgem, struct sna, kgem);
	if (kgem->nbatch == 0 && sna->render.vbo && !kgem_bo_is_busy(sna->render.vbo)) {
		DBG(("%s: resetting idle vbo handle=%d\n", __FUNCTION__, sna->render.vbo->handle));
		sna->render.vertex_used = 0;
		sna->render.vertex_index = 0;
	}
}
 
static void
gen6_render_expire(struct kgem *kgem)
{
	struct sna *sna;
 
	sna = container_of(kgem, struct sna, kgem);
	if (sna->render.vbo && !sna->render.vertex_used) {
		DBG(("%s: discarding vbo handle=%d\n", __FUNCTION__, sna->render.vbo->handle));
		kgem_bo_destroy(kgem, sna->render.vbo);
		assert(!sna->render.active);
		sna->render.vbo = NULL;
		sna->render.vertices = sna->render.vertex_data;
		sna->render.vertex_size = ARRAY_SIZE(sna->render.vertex_data);
		sna->render.vertex_used = 0;
		sna->render.vertex_index = 0;
	}
}
 
static void gen6_render_reset(struct sna *sna)
{
	sna->render_state.gen6.needs_invariant = true;
	sna->render_state.gen6.first_state_packet = true;
	sna->render_state.gen6.ve_id = 3 << 2;
	sna->render_state.gen6.last_primitive = -1;
 
	sna->render_state.gen6.num_sf_outputs = 0;
	sna->render_state.gen6.samplers = -1;
	sna->render_state.gen6.blend = -1;
	sna->render_state.gen6.kernel = -1;
	sna->render_state.gen6.drawrect_offset = -1;
	sna->render_state.gen6.drawrect_limit = -1;
	sna->render_state.gen6.surface_table = -1;
 
	sna->render.vertex_offset = 0;
	sna->render.nvertex_reloc = 0;
	sna->render.vb_id = 0;
}
 
static void gen6_render_fini(struct sna *sna)
{
    kgem_bo_destroy(&sna->kgem, sna->render_state.gen6.general_bo);
}
 
static bool is_gt2(struct sna *sna)
{
	return sna->PciInfo->device_id & 0x30;
}
 
static bool is_mobile(struct sna *sna)
{
	return (sna->PciInfo->device_id & 0xf) == 0x6;
}
 
static bool gen6_render_setup(struct sna *sna)
{
	struct gen6_render_state *state = &sna->render_state.gen6;
	struct sna_static_stream general;
	struct gen6_sampler_state *ss;
	int i, j, k, l, m;
 
	state->info = >1_info;
	if (is_gt2(sna))
		state->info = >2_info; /* XXX requires GT_MODE WiZ disabled */
 
    sna_static_stream_init(&general);
 
	/* Zero pad the start. If you see an offset of 0x0 in the batchbuffer
	 * dumps, you know it points to zero.
	 */
    null_create(&general);
    scratch_create(&general);
 
	for (m = 0; m < GEN6_KERNEL_COUNT; m++) {
		if (wm_kernels[m].size) {
			state->wm_kernel[m][1] =
			sna_static_stream_add(&general,
					       wm_kernels[m].data,
					       wm_kernels[m].size,
					       64);
		} else {
			if (USE_8_PIXEL_DISPATCH) {
				state->wm_kernel[m][0] =
					sna_static_stream_compile_wm(sna, &general,
								     wm_kernels[m].data, 8);
			}
 
			if (USE_16_PIXEL_DISPATCH) {
				state->wm_kernel[m][1] =
					sna_static_stream_compile_wm(sna, &general,
								     wm_kernels[m].data, 16);
			}
 
			if (USE_32_PIXEL_DISPATCH) {
				state->wm_kernel[m][2] =
					sna_static_stream_compile_wm(sna, &general,
								     wm_kernels[m].data, 32);
			}
		}
		if ((state->wm_kernel[m][0]|state->wm_kernel[m][1]|state->wm_kernel[m][2]) == 0) {
			state->wm_kernel[m][1] =
				sna_static_stream_compile_wm(sna, &general,
							     wm_kernels[m].data, 16);
		}
	}
 
	ss = sna_static_stream_map(&general,
				   2 * sizeof(*ss) *
				   (2 +
				   FILTER_COUNT * EXTEND_COUNT *
				    FILTER_COUNT * EXTEND_COUNT),
				   32);
	state->wm_state = sna_static_stream_offsetof(&general, ss);
	sampler_copy_init(ss); ss += 2;
	sampler_fill_init(ss); ss += 2;
	for (i = 0; i < FILTER_COUNT; i++) {
		for (j = 0; j < EXTEND_COUNT; j++) {
			for (k = 0; k < FILTER_COUNT; k++) {
				for (l = 0; l < EXTEND_COUNT; l++) {
					sampler_state_init(ss++, i, j);
					sampler_state_init(ss++, k, l);
				}
			}
		}
	}
 
    state->cc_blend = gen6_composite_create_blend_state(&general);
 
    state->general_bo = sna_static_stream_fini(sna, &general);
    return state->general_bo != NULL;
}
 
const char *gen6_render_init(struct sna *sna, const char *backend)
{
    if (!gen6_render_setup(sna))
		return backend;
 
	sna->kgem.context_switch = gen6_render_context_switch;
	sna->kgem.retire = gen6_render_retire;
	sna->kgem.expire = gen6_render_expire;
 
#if 0
#if !NO_COMPOSITE
	sna->render.composite = gen6_render_composite;
	sna->render.prefer_gpu |= PREFER_GPU_RENDER;
#endif
 
#if !NO_COMPOSITE_SPANS
	sna->render.check_composite_spans = gen6_check_composite_spans;
	sna->render.composite_spans = gen6_render_composite_spans;
	if (is_mobile(sna))
		sna->render.prefer_gpu |= PREFER_GPU_SPANS;
#endif
	sna->render.video = gen6_render_video;
 
#if !NO_COPY_BOXES
	sna->render.copy_boxes = gen6_render_copy_boxes;
#endif
#if !NO_COPY
	sna->render.copy = gen6_render_copy;
#endif
 
#if !NO_FILL_BOXES
	sna->render.fill_boxes = gen6_render_fill_boxes;
#endif
#if !NO_FILL
	sna->render.fill = gen6_render_fill;
#endif
#if !NO_FILL_ONE
	sna->render.fill_one = gen6_render_fill_one;
#endif
#if !NO_FILL_CLEAR
	sna->render.clear = gen6_render_clear;
#endif
#endif
 
    sna->render.caps = HW_BIT_BLIT | HW_TEX_BLIT;
    sna->render.blit_tex = gen6_blit_tex;
 
    sna->render.flush = gen6_render_flush;
    sna->render.reset = gen6_render_reset;
	sna->render.fini = gen6_render_fini;
 
    sna->render.max_3d_size = GEN6_MAX_SIZE;
    sna->render.max_3d_pitch = 1 << 18;
	return sna->render_state.gen6.info->name;
}
 
static bool
gen6_blit_tex(struct sna *sna,
              uint8_t op, bool scale,
		      PixmapPtr src, struct kgem_bo *src_bo,
		      PixmapPtr mask,struct kgem_bo *mask_bo,
		      PixmapPtr dst, struct kgem_bo *dst_bo,
              int32_t src_x, int32_t src_y,
              int32_t msk_x, int32_t msk_y,
              int32_t dst_x, int32_t dst_y,
              int32_t width, int32_t height,
              struct sna_composite_op *tmp)
{
 
    DBG(("%s: %dx%d, current mode=%d\n", __FUNCTION__,
         width, height, sna->kgem.ring));
 
    tmp->op = PictOpSrc;
 
    tmp->dst.pixmap = dst;
    tmp->dst.bo     = dst_bo;
    tmp->dst.width  = dst->drawable.width;
    tmp->dst.height = dst->drawable.height;
    tmp->dst.format = PICT_x8r8g8b8;
 
 
	tmp->src.repeat = SAMPLER_EXTEND_NONE;
    tmp->src.is_affine = true;
 
    tmp->src.bo = src_bo;
	tmp->src.pict_format = PICT_x8r8g8b8;
    tmp->src.card_format = gen6_get_card_format(tmp->src.pict_format);
    tmp->src.width  = src->drawable.width;
    tmp->src.height = src->drawable.height;
 
	if ( (tmp->src.width  == width) &&
         (tmp->src.height == height) )
		tmp->src.filter = SAMPLER_FILTER_NEAREST;
	else
		tmp->src.filter = SAMPLER_FILTER_BILINEAR;
 
	tmp->is_affine = tmp->src.is_affine;
	tmp->has_component_alpha = false;
	tmp->need_magic_ca_pass = false;
 
	tmp->mask.repeat = SAMPLER_EXTEND_NONE;
	tmp->mask.filter = SAMPLER_FILTER_NEAREST;
    tmp->mask.is_affine = true;
 
    tmp->mask.bo = mask_bo;
    tmp->mask.pict_format = PIXMAN_a8;
    tmp->mask.card_format = gen6_get_card_format(tmp->mask.pict_format);
    tmp->mask.width  = mask->drawable.width;
    tmp->mask.height = mask->drawable.height;
 
 
    if( scale )
    {
        tmp->src.scale[0] = 1.f/width;
        tmp->src.scale[1] = 1.f/height;
    }
    else
    {
        tmp->src.scale[0] = 1.f/src->drawable.width;
        tmp->src.scale[1] = 1.f/src->drawable.height;
    }
//    tmp->src.offset[0] = -dst_x;
//    tmp->src.offset[1] = -dst_y;
 
 
    tmp->mask.scale[0] = 1.f/mask->drawable.width;
    tmp->mask.scale[1] = 1.f/mask->drawable.height;
//    tmp->mask.offset[0] = -dst_x;
//    tmp->mask.offset[1] = -dst_y;
 
	tmp->u.gen6.flags =
		GEN6_SET_FLAGS(SAMPLER_OFFSET(tmp->src.filter,
					      tmp->src.repeat,
					      tmp->mask.filter,
					      tmp->mask.repeat),
			       gen6_get_blend(tmp->op,
					      tmp->has_component_alpha,
					      tmp->dst.format),
/*			       gen6_choose_composite_kernel(tmp->op,
							    tmp->mask.bo != NULL,
							    tmp->has_component_alpha,
							    tmp->is_affine),
*/
                   GEN6_WM_KERNEL_MASK,
			       gen4_choose_composite_emitter(sna, tmp));
 
	tmp->blt   = gen6_render_composite_blt;
//    tmp->box   = gen6_render_composite_box;
	tmp->done  = gen6_render_composite_done;
 
	kgem_set_mode(&sna->kgem, KGEM_RENDER, tmp->dst.bo);
	if (!kgem_check_bo(&sna->kgem,
			   tmp->dst.bo, tmp->src.bo, tmp->mask.bo,
			   NULL)) {
		kgem_submit(&sna->kgem);
		_kgem_set_mode(&sna->kgem, KGEM_RENDER);
	}
 
    gen6_emit_composite_state(sna, tmp);
    gen6_align_vertex(sna, tmp);
	return true;
 
}

Rev 4251	Rev 4281
1	/*	1	/*
2	* Copyright © 2006,2008,2011 Intel Corporation	2	* Copyright © 2006,2008,2011 Intel Corporation
3	* Copyright © 2007 Red Hat, Inc.	3	* Copyright © 2007 Red Hat, Inc.
4	*	4	*
5	* Permission is hereby granted, free of charge, to any person obtaining a	5	* Permission is hereby granted, free of charge, to any person obtaining a
6	* copy of this software and associated documentation files (the "Software"),	6	* copy of this software and associated documentation files (the "Software"),
7	* to deal in the Software without restriction, including without limitation	7	* to deal in the Software without restriction, including without limitation
8	* the rights to use, copy, modify, merge, publish, distribute, sublicense,	8	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
9	* and/or sell copies of the Software, and to permit persons to whom the	9	* and/or sell copies of the Software, and to permit persons to whom the
10	* Software is furnished to do so, subject to the following conditions:	10	* Software is furnished to do so, subject to the following conditions:
11	*	11	*
12	* The above copyright notice and this permission notice (including the next	12	* The above copyright notice and this permission notice (including the next
13	* paragraph) shall be included in all copies or substantial portions of the	13	* paragraph) shall be included in all copies or substantial portions of the
14	* Software.	14	* Software.
15	*	15	*
16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR	16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,	17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL	18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER	19	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,	20	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE	21	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22	* SOFTWARE.	22	* SOFTWARE.
23	*	23	*
24	* Authors:	24	* Authors:
25	* Wang Zhenyu	25	* Wang Zhenyu
26	* Eric Anholt	26	* Eric Anholt
27	* Carl Worth	27	* Carl Worth
28	* Keith Packard	28	* Keith Packard
29	* Chris Wilson	29	* Chris Wilson
30	*	30	*
31	*/	31	*/
32		32
33		33
34	#include "sna.h"	34	#include "sna.h"
35	#include "sna_reg.h"	35	#include "sna_reg.h"
36	#include "sna_render.h"	36	#include "sna_render.h"
37	#include "sna_render_inline.h"	37	#include "sna_render_inline.h"
38	//#include "sna_video.h"	38	//#include "sna_video.h"
39		39
40	#include "brw/brw.h"	40	#include "brw/brw.h"
41	#include "gen6_render.h"	41	#include "gen6_render.h"
42	#include "gen4_source.h"	42	#include "gen4_source.h"
43	#include "gen4_vertex.h"	43	#include "gen4_vertex.h"
44		44
45	#define NO_COMPOSITE 0	45	#define NO_COMPOSITE 0
46	#define NO_COMPOSITE_SPANS 0	46	#define NO_COMPOSITE_SPANS 0
47	#define NO_COPY 0	47	#define NO_COPY 0
48	#define NO_COPY_BOXES 0	48	#define NO_COPY_BOXES 0
49	#define NO_FILL 0	49	#define NO_FILL 0
50	#define NO_FILL_BOXES 0	50	#define NO_FILL_BOXES 0
51	#define NO_FILL_ONE 0	51	#define NO_FILL_ONE 0
52	#define NO_FILL_CLEAR 0	52	#define NO_FILL_CLEAR 0
53		53
54	#define NO_RING_SWITCH 0	54	#define NO_RING_SWITCH 0
55	#define PREFER_RENDER 0	55	#define PREFER_RENDER 0
56		56
57	#define USE_8_PIXEL_DISPATCH 1	57	#define USE_8_PIXEL_DISPATCH 1
58	#define USE_16_PIXEL_DISPATCH 1	58	#define USE_16_PIXEL_DISPATCH 1
59	#define USE_32_PIXEL_DISPATCH 0	59	#define USE_32_PIXEL_DISPATCH 0
60		60
61	#if !USE_8_PIXEL_DISPATCH && !USE_16_PIXEL_DISPATCH && !USE_32_PIXEL_DISPATCH	61	#if !USE_8_PIXEL_DISPATCH && !USE_16_PIXEL_DISPATCH && !USE_32_PIXEL_DISPATCH
62	#error "Must select at least 8, 16 or 32 pixel dispatch"	62	#error "Must select at least 8, 16 or 32 pixel dispatch"
63	#endif	63	#endif
64		64
65	#define GEN6_MAX_SIZE 8192	65	#define GEN6_MAX_SIZE 8192
66		66
67	struct gt_info {	67	struct gt_info {
68	const char *name;	68	const char *name;
69	int max_vs_threads;	69	int max_vs_threads;
70	int max_gs_threads;	70	int max_gs_threads;
71	int max_wm_threads;	71	int max_wm_threads;
72	struct {	72	struct {
73	int size;	73	int size;
74	int max_vs_entries;	74	int max_vs_entries;
75	int max_gs_entries;	75	int max_gs_entries;
76	} urb;	76	} urb;
77	};	77	};
78		78
79	static const struct gt_info gt1_info = {	79	static const struct gt_info gt1_info = {
80	.name = "Sandybridge (gen6, gt1)",	80	.name = "Sandybridge (gen6, gt1)",
81	.max_vs_threads = 24,	81	.max_vs_threads = 24,
82	.max_gs_threads = 21,	82	.max_gs_threads = 21,
83	.max_wm_threads = 40,	83	.max_wm_threads = 40,
84	.urb = { 32, 256, 256 },	84	.urb = { 32, 256, 256 },
85	};	85	};
86		86
87	static const struct gt_info gt2_info = {	87	static const struct gt_info gt2_info = {
88	.name = "Sandybridge (gen6, gt2)",	88	.name = "Sandybridge (gen6, gt2)",
89	.max_vs_threads = 60,	89	.max_vs_threads = 60,
90	.max_gs_threads = 60,	90	.max_gs_threads = 60,
91	.max_wm_threads = 80,	91	.max_wm_threads = 80,
92	.urb = { 64, 256, 256 },	92	.urb = { 64, 256, 256 },
93	};	93	};
94		94
95	static const uint32_t ps_kernel_packed[][4] = {	95	static const uint32_t ps_kernel_packed[][4] = {
96	#include "exa_wm_src_affine.g6b"	96	#include "exa_wm_src_affine.g6b"
97	#include "exa_wm_src_sample_argb.g6b"	97	#include "exa_wm_src_sample_argb.g6b"
98	#include "exa_wm_yuv_rgb.g6b"	98	#include "exa_wm_yuv_rgb.g6b"
99	#include "exa_wm_write.g6b"	99	#include "exa_wm_write.g6b"
100	};	100	};
101		101
102	static const uint32_t ps_kernel_planar[][4] = {	102	static const uint32_t ps_kernel_planar[][4] = {
103	#include "exa_wm_src_affine.g6b"	103	#include "exa_wm_src_affine.g6b"
104	#include "exa_wm_src_sample_planar.g6b"	104	#include "exa_wm_src_sample_planar.g6b"
105	#include "exa_wm_yuv_rgb.g6b"	105	#include "exa_wm_yuv_rgb.g6b"
106	#include "exa_wm_write.g6b"	106	#include "exa_wm_write.g6b"
107	};	107	};
108		108
109	#define NOKERNEL(kernel_enum, func, ns) \	109	#define NOKERNEL(kernel_enum, func, ns) \
110	[GEN6_WM_KERNEL_##kernel_enum] = {#kernel_enum, func, 0, ns}	110	[GEN6_WM_KERNEL_##kernel_enum] = {#kernel_enum, func, 0, ns}
111	#define KERNEL(kernel_enum, kernel, ns) \	111	#define KERNEL(kernel_enum, kernel, ns) \
112	[GEN6_WM_KERNEL_##kernel_enum] = {#kernel_enum, kernel, sizeof(kernel), ns}	112	[GEN6_WM_KERNEL_##kernel_enum] = {#kernel_enum, kernel, sizeof(kernel), ns}
113		113
114	static const struct wm_kernel_info {	114	static const struct wm_kernel_info {
115	const char *name;	115	const char *name;
116	const void *data;	116	const void *data;
117	unsigned int size;	117	unsigned int size;
118	unsigned int num_surfaces;	118	unsigned int num_surfaces;
119	} wm_kernels[] = {	119	} wm_kernels[] = {
120	NOKERNEL(NOMASK, brw_wm_kernel__affine, 2),	120	NOKERNEL(NOMASK, brw_wm_kernel__affine, 2),
121	NOKERNEL(NOMASK_P, brw_wm_kernel__projective, 2),	121	NOKERNEL(NOMASK_P, brw_wm_kernel__projective, 2),
122		122
123	NOKERNEL(MASK, brw_wm_kernel__affine_mask, 3),	123	NOKERNEL(MASK, brw_wm_kernel__affine_mask, 3),
124	NOKERNEL(MASK_P, brw_wm_kernel__projective_mask, 3),	124	NOKERNEL(MASK_P, brw_wm_kernel__projective_mask, 3),
125		125
126	NOKERNEL(MASKCA, brw_wm_kernel__affine_mask_ca, 3),	126	NOKERNEL(MASKCA, brw_wm_kernel__affine_mask_ca, 3),
127	NOKERNEL(MASKCA_P, brw_wm_kernel__projective_mask_ca, 3),	127	NOKERNEL(MASKCA_P, brw_wm_kernel__projective_mask_ca, 3),
128		128
129	NOKERNEL(MASKSA, brw_wm_kernel__affine_mask_sa, 3),	129	NOKERNEL(MASKSA, brw_wm_kernel__affine_mask_sa, 3),
130	NOKERNEL(MASKSA_P, brw_wm_kernel__projective_mask_sa, 3),	130	NOKERNEL(MASKSA_P, brw_wm_kernel__projective_mask_sa, 3),
131		131
132	NOKERNEL(OPACITY, brw_wm_kernel__affine_opacity, 2),	132	NOKERNEL(OPACITY, brw_wm_kernel__affine_opacity, 2),
133	NOKERNEL(OPACITY_P, brw_wm_kernel__projective_opacity, 2),	133	NOKERNEL(OPACITY_P, brw_wm_kernel__projective_opacity, 2),
134		134
135	KERNEL(VIDEO_PLANAR, ps_kernel_planar, 7),	135	KERNEL(VIDEO_PLANAR, ps_kernel_planar, 7),
136	KERNEL(VIDEO_PACKED, ps_kernel_packed, 2),	136	KERNEL(VIDEO_PACKED, ps_kernel_packed, 2),
137	};	137	};
138	#undef KERNEL	138	#undef KERNEL
139		139
140	static const struct blendinfo {	140	static const struct blendinfo {
141	bool src_alpha;	141	bool src_alpha;
142	uint32_t src_blend;	142	uint32_t src_blend;
143	uint32_t dst_blend;	143	uint32_t dst_blend;
144	} gen6_blend_op[] = {	144	} gen6_blend_op[] = {
145	/* Clear */ {0, GEN6_BLENDFACTOR_ZERO, GEN6_BLENDFACTOR_ZERO},	145	/* Clear */ {0, GEN6_BLENDFACTOR_ZERO, GEN6_BLENDFACTOR_ZERO},
146	/* Src */ {0, GEN6_BLENDFACTOR_ONE, GEN6_BLENDFACTOR_ZERO},	146	/* Src */ {0, GEN6_BLENDFACTOR_ONE, GEN6_BLENDFACTOR_ZERO},
147	/* Dst */ {0, GEN6_BLENDFACTOR_ZERO, GEN6_BLENDFACTOR_ONE},	147	/* Dst */ {0, GEN6_BLENDFACTOR_ZERO, GEN6_BLENDFACTOR_ONE},
148	/* Over */ {1, GEN6_BLENDFACTOR_ONE, GEN6_BLENDFACTOR_INV_SRC_ALPHA},	148	/* Over */ {1, GEN6_BLENDFACTOR_ONE, GEN6_BLENDFACTOR_INV_SRC_ALPHA},
149	/* OverReverse */ {0, GEN6_BLENDFACTOR_INV_DST_ALPHA, GEN6_BLENDFACTOR_ONE},	149	/* OverReverse */ {0, GEN6_BLENDFACTOR_INV_DST_ALPHA, GEN6_BLENDFACTOR_ONE},
150	/* In */ {0, GEN6_BLENDFACTOR_DST_ALPHA, GEN6_BLENDFACTOR_ZERO},	150	/* In */ {0, GEN6_BLENDFACTOR_DST_ALPHA, GEN6_BLENDFACTOR_ZERO},
151	/* InReverse */ {1, GEN6_BLENDFACTOR_ZERO, GEN6_BLENDFACTOR_SRC_ALPHA},	151	/* InReverse */ {1, GEN6_BLENDFACTOR_ZERO, GEN6_BLENDFACTOR_SRC_ALPHA},
152	/* Out */ {0, GEN6_BLENDFACTOR_INV_DST_ALPHA, GEN6_BLENDFACTOR_ZERO},	152	/* Out */ {0, GEN6_BLENDFACTOR_INV_DST_ALPHA, GEN6_BLENDFACTOR_ZERO},
153	/* OutReverse */ {1, GEN6_BLENDFACTOR_ZERO, GEN6_BLENDFACTOR_INV_SRC_ALPHA},	153	/* OutReverse */ {1, GEN6_BLENDFACTOR_ZERO, GEN6_BLENDFACTOR_INV_SRC_ALPHA},
154	/* Atop */ {1, GEN6_BLENDFACTOR_DST_ALPHA, GEN6_BLENDFACTOR_INV_SRC_ALPHA},	154	/* Atop */ {1, GEN6_BLENDFACTOR_DST_ALPHA, GEN6_BLENDFACTOR_INV_SRC_ALPHA},
155	/* AtopReverse */ {1, GEN6_BLENDFACTOR_INV_DST_ALPHA, GEN6_BLENDFACTOR_SRC_ALPHA},	155	/* AtopReverse */ {1, GEN6_BLENDFACTOR_INV_DST_ALPHA, GEN6_BLENDFACTOR_SRC_ALPHA},
156	/* Xor */ {1, GEN6_BLENDFACTOR_INV_DST_ALPHA, GEN6_BLENDFACTOR_INV_SRC_ALPHA},	156	/* Xor */ {1, GEN6_BLENDFACTOR_INV_DST_ALPHA, GEN6_BLENDFACTOR_INV_SRC_ALPHA},
157	/* Add */ {0, GEN6_BLENDFACTOR_ONE, GEN6_BLENDFACTOR_ONE},	157	/* Add */ {0, GEN6_BLENDFACTOR_ONE, GEN6_BLENDFACTOR_ONE},
158	};	158	};
159		159
160	/**	160	/**
161	* Highest-valued BLENDFACTOR used in gen6_blend_op.	161	* Highest-valued BLENDFACTOR used in gen6_blend_op.
162	*	162	*
163	* This leaves out GEN6_BLENDFACTOR_INV_DST_COLOR,	163	* This leaves out GEN6_BLENDFACTOR_INV_DST_COLOR,
164	* GEN6_BLENDFACTOR_INV_CONST_{COLOR,ALPHA},	164	* GEN6_BLENDFACTOR_INV_CONST_{COLOR,ALPHA},
165	* GEN6_BLENDFACTOR_INV_SRC1_{COLOR,ALPHA}	165	* GEN6_BLENDFACTOR_INV_SRC1_{COLOR,ALPHA}
166	*/	166	*/
167	#define GEN6_BLENDFACTOR_COUNT (GEN6_BLENDFACTOR_INV_DST_ALPHA + 1)	167	#define GEN6_BLENDFACTOR_COUNT (GEN6_BLENDFACTOR_INV_DST_ALPHA + 1)
168		168
169	#define GEN6_BLEND_STATE_PADDED_SIZE ALIGN(sizeof(struct gen6_blend_state), 64)	169	#define GEN6_BLEND_STATE_PADDED_SIZE ALIGN(sizeof(struct gen6_blend_state), 64)
170		170
171	#define BLEND_OFFSET(s, d) \	171	#define BLEND_OFFSET(s, d) \
172	(((s) * GEN6_BLENDFACTOR_COUNT + (d)) * GEN6_BLEND_STATE_PADDED_SIZE)	172	(((s) * GEN6_BLENDFACTOR_COUNT + (d)) * GEN6_BLEND_STATE_PADDED_SIZE)
173		173
174	#define NO_BLEND BLEND_OFFSET(GEN6_BLENDFACTOR_ONE, GEN6_BLENDFACTOR_ZERO)	174	#define NO_BLEND BLEND_OFFSET(GEN6_BLENDFACTOR_ONE, GEN6_BLENDFACTOR_ZERO)
175	#define CLEAR BLEND_OFFSET(GEN6_BLENDFACTOR_ZERO, GEN6_BLENDFACTOR_ZERO)	175	#define CLEAR BLEND_OFFSET(GEN6_BLENDFACTOR_ZERO, GEN6_BLENDFACTOR_ZERO)
176		176
177	#define SAMPLER_OFFSET(sf, se, mf, me) \	177	#define SAMPLER_OFFSET(sf, se, mf, me) \
178	(((((sf) * EXTEND_COUNT + (se)) * FILTER_COUNT + (mf)) * EXTEND_COUNT + (me) + 2) * 2 * sizeof(struct gen6_sampler_state))	178	(((((sf) * EXTEND_COUNT + (se)) * FILTER_COUNT + (mf)) * EXTEND_COUNT + (me) + 2) * 2 * sizeof(struct gen6_sampler_state))
179		179
180	#define VERTEX_2s2s 0	180	#define VERTEX_2s2s 0
181		181
182	#define COPY_SAMPLER 0	182	#define COPY_SAMPLER 0
183	#define COPY_VERTEX VERTEX_2s2s	183	#define COPY_VERTEX VERTEX_2s2s
184	#define COPY_FLAGS(a) GEN6_SET_FLAGS(COPY_SAMPLER, (a) == GXcopy ? NO_BLEND : CLEAR, GEN6_WM_KERNEL_NOMASK, COPY_VERTEX)	184	#define COPY_FLAGS(a) GEN6_SET_FLAGS(COPY_SAMPLER, (a) == GXcopy ? NO_BLEND : CLEAR, GEN6_WM_KERNEL_NOMASK, COPY_VERTEX)
185		185
186	#define FILL_SAMPLER (2 * sizeof(struct gen6_sampler_state))	186	#define FILL_SAMPLER (2 * sizeof(struct gen6_sampler_state))
187	#define FILL_VERTEX VERTEX_2s2s	187	#define FILL_VERTEX VERTEX_2s2s
188	#define FILL_FLAGS(op, format) GEN6_SET_FLAGS(FILL_SAMPLER, gen6_get_blend((op), false, (format)), GEN6_WM_KERNEL_NOMASK, FILL_VERTEX)	188	#define FILL_FLAGS(op, format) GEN6_SET_FLAGS(FILL_SAMPLER, gen6_get_blend((op), false, (format)), GEN6_WM_KERNEL_NOMASK, FILL_VERTEX)
189	#define FILL_FLAGS_NOBLEND GEN6_SET_FLAGS(FILL_SAMPLER, NO_BLEND, GEN6_WM_KERNEL_NOMASK, FILL_VERTEX)	189	#define FILL_FLAGS_NOBLEND GEN6_SET_FLAGS(FILL_SAMPLER, NO_BLEND, GEN6_WM_KERNEL_NOMASK, FILL_VERTEX)
190		190
191	#define GEN6_SAMPLER(f) (((f) >> 16) & 0xfff0)	191	#define GEN6_SAMPLER(f) (((f) >> 16) & 0xfff0)
192	#define GEN6_BLEND(f) (((f) >> 0) & 0xfff0)	192	#define GEN6_BLEND(f) (((f) >> 0) & 0xfff0)
193	#define GEN6_KERNEL(f) (((f) >> 16) & 0xf)	193	#define GEN6_KERNEL(f) (((f) >> 16) & 0xf)
194	#define GEN6_VERTEX(f) (((f) >> 0) & 0xf)	194	#define GEN6_VERTEX(f) (((f) >> 0) & 0xf)
195	#define GEN6_SET_FLAGS(S, B, K, V) (((S) \| (K)) << 16 \| ((B) \| (V)))	195	#define GEN6_SET_FLAGS(S, B, K, V) (((S) \| (K)) << 16 \| ((B) \| (V)))
196		196
197	#define OUT_BATCH(v) batch_emit(sna, v)	197	#define OUT_BATCH(v) batch_emit(sna, v)
198	#define OUT_VERTEX(x,y) vertex_emit_2s(sna, x,y)	198	#define OUT_VERTEX(x,y) vertex_emit_2s(sna, x,y)
199	#define OUT_VERTEX_F(v) vertex_emit(sna, v)	199	#define OUT_VERTEX_F(v) vertex_emit(sna, v)
200		200
201	static inline bool too_large(int width, int height)	201	static inline bool too_large(int width, int height)
202	{	202	{
203	return width > GEN6_MAX_SIZE \|\| height > GEN6_MAX_SIZE;	203	return width > GEN6_MAX_SIZE \|\| height > GEN6_MAX_SIZE;
204	}	204	}
205		205
206	static uint32_t gen6_get_blend(int op,	206	static uint32_t gen6_get_blend(int op,
207	bool has_component_alpha,	207	bool has_component_alpha,
208	uint32_t dst_format)	208	uint32_t dst_format)
209	{	209	{
210	uint32_t src, dst;	210	uint32_t src, dst;
211		211
212		212
213	src = GEN6_BLENDFACTOR_ONE; //gen6_blend_op[op].src_blend;	213	src = GEN6_BLENDFACTOR_ONE; //gen6_blend_op[op].src_blend;
214	dst = GEN6_BLENDFACTOR_INV_SRC_ALPHA; //gen6_blend_op[op].dst_blend;	214	dst = GEN6_BLENDFACTOR_INV_SRC_ALPHA; //gen6_blend_op[op].dst_blend;
215		215
216	// dst = GEN6_BLENDFACTOR_ZERO; //gen6_blend_op[op].dst_blend;	216	// dst = GEN6_BLENDFACTOR_ZERO; //gen6_blend_op[op].dst_blend;
217		217
218	#if 0	218	#if 0
219	/* If there's no dst alpha channel, adjust the blend op so that	219	/* If there's no dst alpha channel, adjust the blend op so that
220	* we'll treat it always as 1.	220	* we'll treat it always as 1.
221	*/	221	*/
222	if (PICT_FORMAT_A(dst_format) == 0) {	222	if (PICT_FORMAT_A(dst_format) == 0) {
223	if (src == GEN6_BLENDFACTOR_DST_ALPHA)	223	if (src == GEN6_BLENDFACTOR_DST_ALPHA)
224	src = GEN6_BLENDFACTOR_ONE;	224	src = GEN6_BLENDFACTOR_ONE;
225	else if (src == GEN6_BLENDFACTOR_INV_DST_ALPHA)	225	else if (src == GEN6_BLENDFACTOR_INV_DST_ALPHA)
226	src = GEN6_BLENDFACTOR_ZERO;	226	src = GEN6_BLENDFACTOR_ZERO;
227	}	227	}
228		228
229	/* If the source alpha is being used, then we should only be in a	229	/* If the source alpha is being used, then we should only be in a
230	* case where the source blend factor is 0, and the source blend	230	* case where the source blend factor is 0, and the source blend
231	* value is the mask channels multiplied by the source picture's alpha.	231	* value is the mask channels multiplied by the source picture's alpha.
232	*/	232	*/
233	if (has_component_alpha && gen6_blend_op[op].src_alpha) {	233	if (has_component_alpha && gen6_blend_op[op].src_alpha) {
234	if (dst == GEN6_BLENDFACTOR_SRC_ALPHA)	234	if (dst == GEN6_BLENDFACTOR_SRC_ALPHA)
235	dst = GEN6_BLENDFACTOR_SRC_COLOR;	235	dst = GEN6_BLENDFACTOR_SRC_COLOR;
236	else if (dst == GEN6_BLENDFACTOR_INV_SRC_ALPHA)	236	else if (dst == GEN6_BLENDFACTOR_INV_SRC_ALPHA)
237	dst = GEN6_BLENDFACTOR_INV_SRC_COLOR;	237	dst = GEN6_BLENDFACTOR_INV_SRC_COLOR;
238	}	238	}
239		239
240	DBG(("blend op=%d, dst=%x [A=%d] => src=%d, dst=%d => offset=%x\n",	240	DBG(("blend op=%d, dst=%x [A=%d] => src=%d, dst=%d => offset=%x\n",
241	op, dst_format, PICT_FORMAT_A(dst_format),	241	op, dst_format, PICT_FORMAT_A(dst_format),
242	src, dst, (int)BLEND_OFFSET(src, dst)));	242	src, dst, (int)BLEND_OFFSET(src, dst)));
243	#endif	243	#endif
244		244
245	return BLEND_OFFSET(src, dst);	245	return BLEND_OFFSET(src, dst);
246	}	246	}
247		247
248	static uint32_t gen6_get_card_format(PictFormat format)	248	static uint32_t gen6_get_card_format(PictFormat format)
249	{	249	{
250	switch (format) {	250	switch (format) {
251	default:	251	default:
252	return -1;	252	return -1;
253	case PICT_a8r8g8b8:	253	case PICT_a8r8g8b8:
254	return GEN6_SURFACEFORMAT_B8G8R8A8_UNORM;	254	return GEN6_SURFACEFORMAT_B8G8R8A8_UNORM;
255	case PICT_x8r8g8b8:	255	case PICT_x8r8g8b8:
256	return GEN6_SURFACEFORMAT_B8G8R8X8_UNORM;	256	return GEN6_SURFACEFORMAT_B8G8R8X8_UNORM;
257	case PICT_a8b8g8r8:	257	case PICT_a8b8g8r8:
258	return GEN6_SURFACEFORMAT_R8G8B8A8_UNORM;	258	return GEN6_SURFACEFORMAT_R8G8B8A8_UNORM;
259	case PICT_x8b8g8r8:	259	case PICT_x8b8g8r8:
260	return GEN6_SURFACEFORMAT_R8G8B8X8_UNORM;	260	return GEN6_SURFACEFORMAT_R8G8B8X8_UNORM;
261	case PICT_a2r10g10b10:	261	case PICT_a2r10g10b10:
262	return GEN6_SURFACEFORMAT_B10G10R10A2_UNORM;	262	return GEN6_SURFACEFORMAT_B10G10R10A2_UNORM;
263	case PICT_x2r10g10b10:	263	case PICT_x2r10g10b10:
264	return GEN6_SURFACEFORMAT_B10G10R10X2_UNORM;	264	return GEN6_SURFACEFORMAT_B10G10R10X2_UNORM;
265	case PICT_r8g8b8:	265	case PICT_r8g8b8:
266	return GEN6_SURFACEFORMAT_R8G8B8_UNORM;	266	return GEN6_SURFACEFORMAT_R8G8B8_UNORM;
267	case PICT_r5g6b5:	267	case PICT_r5g6b5:
268	return GEN6_SURFACEFORMAT_B5G6R5_UNORM;	268	return GEN6_SURFACEFORMAT_B5G6R5_UNORM;
269	case PICT_a1r5g5b5:	269	case PICT_a1r5g5b5:
270	return GEN6_SURFACEFORMAT_B5G5R5A1_UNORM;	270	return GEN6_SURFACEFORMAT_B5G5R5A1_UNORM;
271	case PICT_a8:	271	case PICT_a8:
272	return GEN6_SURFACEFORMAT_A8_UNORM;	272	return GEN6_SURFACEFORMAT_A8_UNORM;
273	case PICT_a4r4g4b4:	273	case PICT_a4r4g4b4:
274	return GEN6_SURFACEFORMAT_B4G4R4A4_UNORM;	274	return GEN6_SURFACEFORMAT_B4G4R4A4_UNORM;
275	}	275	}
276	}	276	}
277		277
278	static uint32_t gen6_get_dest_format(PictFormat format)	278	static uint32_t gen6_get_dest_format(PictFormat format)
279	{	279	{
280	return GEN6_SURFACEFORMAT_B8G8R8A8_UNORM;	280	return GEN6_SURFACEFORMAT_B8G8R8A8_UNORM;
281		281
282	#if 0	282	#if 0
283		283
284	switch (format) {	284	switch (format) {
285	default:	285	default:
286	return -1;	286	return -1;
287	case PICT_a8r8g8b8:	287	case PICT_a8r8g8b8:
288	case PICT_x8r8g8b8:	288	case PICT_x8r8g8b8:
289	return GEN6_SURFACEFORMAT_B8G8R8A8_UNORM;	289	return GEN6_SURFACEFORMAT_B8G8R8A8_UNORM;
290	case PICT_a8b8g8r8:	290	case PICT_a8b8g8r8:
291	case PICT_x8b8g8r8:	291	case PICT_x8b8g8r8:
292	return GEN6_SURFACEFORMAT_R8G8B8A8_UNORM;	292	return GEN6_SURFACEFORMAT_R8G8B8A8_UNORM;
293	case PICT_a2r10g10b10:	293	case PICT_a2r10g10b10:
294	case PICT_x2r10g10b10:	294	case PICT_x2r10g10b10:
295	return GEN6_SURFACEFORMAT_B10G10R10A2_UNORM;	295	return GEN6_SURFACEFORMAT_B10G10R10A2_UNORM;
296	case PICT_r5g6b5:	296	case PICT_r5g6b5:
297	return GEN6_SURFACEFORMAT_B5G6R5_UNORM;	297	return GEN6_SURFACEFORMAT_B5G6R5_UNORM;
298	case PICT_x1r5g5b5:	298	case PICT_x1r5g5b5:
299	case PICT_a1r5g5b5:	299	case PICT_a1r5g5b5:
300	return GEN6_SURFACEFORMAT_B5G5R5A1_UNORM;	300	return GEN6_SURFACEFORMAT_B5G5R5A1_UNORM;
301	case PICT_a8:	301	case PICT_a8:
302	return GEN6_SURFACEFORMAT_A8_UNORM;	302	return GEN6_SURFACEFORMAT_A8_UNORM;
303	case PICT_a4r4g4b4:	303	case PICT_a4r4g4b4:
304	case PICT_x4r4g4b4:	304	case PICT_x4r4g4b4:
305	return GEN6_SURFACEFORMAT_B4G4R4A4_UNORM;	305	return GEN6_SURFACEFORMAT_B4G4R4A4_UNORM;
306	}	306	}
307	#endif	307	#endif
308		308
309	}	309	}
310		310
311	#if 0	311	#if 0
312		312
313	static bool gen6_check_dst_format(PictFormat format)	313	static bool gen6_check_dst_format(PictFormat format)
314	{	314	{
315	if (gen6_get_dest_format(format) != -1)	315	if (gen6_get_dest_format(format) != -1)
316	return true;	316	return true;
317		317
318	DBG(("%s: unhandled format: %x\n", __FUNCTION__, (int)format));	318	DBG(("%s: unhandled format: %x\n", __FUNCTION__, (int)format));
319	return false;	319	return false;
320	}	320	}
321		321
322	static bool gen6_check_format(uint32_t format)	322	static bool gen6_check_format(uint32_t format)
323	{	323	{
324	if (gen6_get_card_format(format) != -1)	324	if (gen6_get_card_format(format) != -1)
325	return true;	325	return true;
326		326
327	DBG(("%s: unhandled format: %x\n", __FUNCTION__, (int)format));	327	DBG(("%s: unhandled format: %x\n", __FUNCTION__, (int)format));
328	return false;	328	return false;
329	}	329	}
330		330
331	static uint32_t gen6_filter(uint32_t filter)	331	static uint32_t gen6_filter(uint32_t filter)
332	{	332	{
333	switch (filter) {	333	switch (filter) {
334	default:	334	default:
335	assert(0);	335	assert(0);
336	case PictFilterNearest:	336	case PictFilterNearest:
337	return SAMPLER_FILTER_NEAREST;	337	return SAMPLER_FILTER_NEAREST;
338	case PictFilterBilinear:	338	case PictFilterBilinear:
339	return SAMPLER_FILTER_BILINEAR;	339	return SAMPLER_FILTER_BILINEAR;
340	}	340	}
341	}	341	}
342		342
343	static uint32_t gen6_check_filter(PicturePtr picture)	343	static uint32_t gen6_check_filter(PicturePtr picture)
344	{	344	{
345	switch (picture->filter) {	345	switch (picture->filter) {
346	case PictFilterNearest:	346	case PictFilterNearest:
347	case PictFilterBilinear:	347	case PictFilterBilinear:
348	return true;	348	return true;
349	default:	349	default:
350	return false;	350	return false;
351	}	351	}
352	}	352	}
353		353
354	static uint32_t gen6_repeat(uint32_t repeat)	354	static uint32_t gen6_repeat(uint32_t repeat)
355	{	355	{
356	switch (repeat) {	356	switch (repeat) {
357	default:	357	default:
358	assert(0);	358	assert(0);
359	case RepeatNone:	359	case RepeatNone:
360	return SAMPLER_EXTEND_NONE;	360	return SAMPLER_EXTEND_NONE;
361	case RepeatNormal:	361	case RepeatNormal:
362	return SAMPLER_EXTEND_REPEAT;	362	return SAMPLER_EXTEND_REPEAT;
363	case RepeatPad:	363	case RepeatPad:
364	return SAMPLER_EXTEND_PAD;	364	return SAMPLER_EXTEND_PAD;
365	case RepeatReflect:	365	case RepeatReflect:
366	return SAMPLER_EXTEND_REFLECT;	366	return SAMPLER_EXTEND_REFLECT;
367	}	367	}
368	}	368	}
369		369
370	static bool gen6_check_repeat(PicturePtr picture)	370	static bool gen6_check_repeat(PicturePtr picture)
371	{	371	{
372	if (!picture->repeat)	372	if (!picture->repeat)
373	return true;	373	return true;
374		374
375	switch (picture->repeatType) {	375	switch (picture->repeatType) {
376	case RepeatNone:	376	case RepeatNone:
377	case RepeatNormal:	377	case RepeatNormal:
378	case RepeatPad:	378	case RepeatPad:
379	case RepeatReflect:	379	case RepeatReflect:
380	return true;	380	return true;
381	default:	381	default:
382	return false;	382	return false;
383	}	383	}
384	}	384	}
385	#endif	385	#endif
386		386
387	static int	387	static int
388	gen6_choose_composite_kernel(int op, bool has_mask, bool is_ca, bool is_affine)	388	gen6_choose_composite_kernel(int op, bool has_mask, bool is_ca, bool is_affine)
389	{	389	{
390	int base;	390	int base;
391		391
392	if (has_mask) {	392	if (has_mask) {
393	if (is_ca) {	393	if (is_ca) {
394	if (gen6_blend_op[op].src_alpha)	394	if (gen6_blend_op[op].src_alpha)
395	base = GEN6_WM_KERNEL_MASKSA;	395	base = GEN6_WM_KERNEL_MASKSA;
396	else	396	else
397	base = GEN6_WM_KERNEL_MASKCA;	397	base = GEN6_WM_KERNEL_MASKCA;
398	} else	398	} else
399	base = GEN6_WM_KERNEL_MASK;	399	base = GEN6_WM_KERNEL_MASK;
400	} else	400	} else
401	base = GEN6_WM_KERNEL_NOMASK;	401	base = GEN6_WM_KERNEL_NOMASK;
402		402
403	return base + !is_affine;	403	return base + !is_affine;
404	}	404	}
405		405
406	static void	406	static void
407	gen6_emit_urb(struct sna *sna)	407	gen6_emit_urb(struct sna *sna)
408	{	408	{
409	OUT_BATCH(GEN6_3DSTATE_URB \| (3 - 2));	409	OUT_BATCH(GEN6_3DSTATE_URB \| (3 - 2));
410	OUT_BATCH(((1 - 1) << GEN6_3DSTATE_URB_VS_SIZE_SHIFT) \|	410	OUT_BATCH(((1 - 1) << GEN6_3DSTATE_URB_VS_SIZE_SHIFT) \|
411	(sna->render_state.gen6.info->urb.max_vs_entries << GEN6_3DSTATE_URB_VS_ENTRIES_SHIFT)); /* at least 24 on GEN6 */	411	(sna->render_state.gen6.info->urb.max_vs_entries << GEN6_3DSTATE_URB_VS_ENTRIES_SHIFT)); /* at least 24 on GEN6 */
412	OUT_BATCH((0 << GEN6_3DSTATE_URB_GS_SIZE_SHIFT) \|	412	OUT_BATCH((0 << GEN6_3DSTATE_URB_GS_SIZE_SHIFT) \|
413	(0 << GEN6_3DSTATE_URB_GS_ENTRIES_SHIFT)); /* no GS thread */	413	(0 << GEN6_3DSTATE_URB_GS_ENTRIES_SHIFT)); /* no GS thread */
414	}	414	}
415		415
416	static void	416	static void
417	gen6_emit_state_base_address(struct sna *sna)	417	gen6_emit_state_base_address(struct sna *sna)
418	{	418	{
419	OUT_BATCH(GEN6_STATE_BASE_ADDRESS \| (10 - 2));	419	OUT_BATCH(GEN6_STATE_BASE_ADDRESS \| (10 - 2));
420	OUT_BATCH(0); /* general */	420	OUT_BATCH(0); /* general */
421	OUT_BATCH(kgem_add_reloc(&sna->kgem, /* surface */	421	OUT_BATCH(kgem_add_reloc(&sna->kgem, /* surface */
422	sna->kgem.nbatch,	422	sna->kgem.nbatch,
423	NULL,	423	NULL,
424	I915_GEM_DOMAIN_INSTRUCTION << 16,	424	I915_GEM_DOMAIN_INSTRUCTION << 16,
425	BASE_ADDRESS_MODIFY));	425	BASE_ADDRESS_MODIFY));
426	OUT_BATCH(kgem_add_reloc(&sna->kgem, /* instruction */	426	OUT_BATCH(kgem_add_reloc(&sna->kgem, /* instruction */
427	sna->kgem.nbatch,	427	sna->kgem.nbatch,
428	sna->render_state.gen6.general_bo,	428	sna->render_state.gen6.general_bo,
429	I915_GEM_DOMAIN_INSTRUCTION << 16,	429	I915_GEM_DOMAIN_INSTRUCTION << 16,
430	BASE_ADDRESS_MODIFY));	430	BASE_ADDRESS_MODIFY));
431	OUT_BATCH(0); /* indirect */	431	OUT_BATCH(0); /* indirect */
432	OUT_BATCH(kgem_add_reloc(&sna->kgem,	432	OUT_BATCH(kgem_add_reloc(&sna->kgem,
433	sna->kgem.nbatch,	433	sna->kgem.nbatch,
434	sna->render_state.gen6.general_bo,	434	sna->render_state.gen6.general_bo,
435	I915_GEM_DOMAIN_INSTRUCTION << 16,	435	I915_GEM_DOMAIN_INSTRUCTION << 16,
436	BASE_ADDRESS_MODIFY));	436	BASE_ADDRESS_MODIFY));
437		437
438	/* upper bounds, disable */	438	/* upper bounds, disable */
439	OUT_BATCH(0);	439	OUT_BATCH(0);
440	OUT_BATCH(BASE_ADDRESS_MODIFY);	440	OUT_BATCH(BASE_ADDRESS_MODIFY);
441	OUT_BATCH(0);	441	OUT_BATCH(0);
442	OUT_BATCH(BASE_ADDRESS_MODIFY);	442	OUT_BATCH(BASE_ADDRESS_MODIFY);
443	}	443	}
444		444
445	static void	445	static void
446	gen6_emit_viewports(struct sna *sna)	446	gen6_emit_viewports(struct sna *sna)
447	{	447	{
448	OUT_BATCH(GEN6_3DSTATE_VIEWPORT_STATE_POINTERS \|	448	OUT_BATCH(GEN6_3DSTATE_VIEWPORT_STATE_POINTERS \|
449	GEN6_3DSTATE_VIEWPORT_STATE_MODIFY_CC \|	449	GEN6_3DSTATE_VIEWPORT_STATE_MODIFY_CC \|
450	(4 - 2));	450	(4 - 2));
451	OUT_BATCH(0);	451	OUT_BATCH(0);
452	OUT_BATCH(0);	452	OUT_BATCH(0);
453	OUT_BATCH(0);	453	OUT_BATCH(0);
454	}	454	}
455		455
456	static void	456	static void
457	gen6_emit_vs(struct sna *sna)	457	gen6_emit_vs(struct sna *sna)
458	{	458	{
459	/* disable VS constant buffer */	459	/* disable VS constant buffer */
460	OUT_BATCH(GEN6_3DSTATE_CONSTANT_VS \| (5 - 2));	460	OUT_BATCH(GEN6_3DSTATE_CONSTANT_VS \| (5 - 2));
461	OUT_BATCH(0);	461	OUT_BATCH(0);
462	OUT_BATCH(0);	462	OUT_BATCH(0);
463	OUT_BATCH(0);	463	OUT_BATCH(0);
464	OUT_BATCH(0);	464	OUT_BATCH(0);
465		465
466	OUT_BATCH(GEN6_3DSTATE_VS \| (6 - 2));	466	OUT_BATCH(GEN6_3DSTATE_VS \| (6 - 2));
467	OUT_BATCH(0); /* no VS kernel */	467	OUT_BATCH(0); /* no VS kernel */
468	OUT_BATCH(0);	468	OUT_BATCH(0);
469	OUT_BATCH(0);	469	OUT_BATCH(0);
470	OUT_BATCH(0);	470	OUT_BATCH(0);
471	OUT_BATCH(0); /* pass-through */	471	OUT_BATCH(0); /* pass-through */
472	}	472	}
473		473
474	static void	474	static void
475	gen6_emit_gs(struct sna *sna)	475	gen6_emit_gs(struct sna *sna)
476	{	476	{
477	/* disable GS constant buffer */	477	/* disable GS constant buffer */
478	OUT_BATCH(GEN6_3DSTATE_CONSTANT_GS \| (5 - 2));	478	OUT_BATCH(GEN6_3DSTATE_CONSTANT_GS \| (5 - 2));
479	OUT_BATCH(0);	479	OUT_BATCH(0);
480	OUT_BATCH(0);	480	OUT_BATCH(0);
481	OUT_BATCH(0);	481	OUT_BATCH(0);
482	OUT_BATCH(0);	482	OUT_BATCH(0);
483		483
484	OUT_BATCH(GEN6_3DSTATE_GS \| (7 - 2));	484	OUT_BATCH(GEN6_3DSTATE_GS \| (7 - 2));
485	OUT_BATCH(0); /* no GS kernel */	485	OUT_BATCH(0); /* no GS kernel */
486	OUT_BATCH(0);	486	OUT_BATCH(0);
487	OUT_BATCH(0);	487	OUT_BATCH(0);
488	OUT_BATCH(0);	488	OUT_BATCH(0);
489	OUT_BATCH(0);	489	OUT_BATCH(0);
490	OUT_BATCH(0); /* pass-through */	490	OUT_BATCH(0); /* pass-through */
491	}	491	}
492		492
493	static void	493	static void
494	gen6_emit_clip(struct sna *sna)	494	gen6_emit_clip(struct sna *sna)
495	{	495	{
496	OUT_BATCH(GEN6_3DSTATE_CLIP \| (4 - 2));	496	OUT_BATCH(GEN6_3DSTATE_CLIP \| (4 - 2));
497	OUT_BATCH(0);	497	OUT_BATCH(0);
498	OUT_BATCH(0); /* pass-through */	498	OUT_BATCH(0); /* pass-through */
499	OUT_BATCH(0);	499	OUT_BATCH(0);
500	}	500	}

Subversion Repositories Kolibri OS

(root)/drivers/video/Intel-2D/gen6_render.c – Rev 4251 → 4281