/*
* Copyright © 2012 Intel Corporation
*
* 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.
*/
#pragma once
#include <stdint.h>
#include "brw_context.h"
#include "brw_reg.h"
#include "intel_mipmap_tree.h"
struct brw_context;
#ifdef __cplusplus
extern "C" {
#endif
void
brw_blorp_blit_miptrees(struct brw_context *brw,
struct intel_mipmap_tree *src_mt,
unsigned src_level, unsigned src_layer,
mesa_format src_format,
struct intel_mipmap_tree *dst_mt,
unsigned dst_level, unsigned dst_layer,
mesa_format dst_format,
float src_x0, float src_y0,
float src_x1, float src_y1,
float dst_x0, float dst_y0,
float dst_x1, float dst_y1,
GLenum filter, bool mirror_x, bool mirror_y);
#ifdef __cplusplus
} /* end extern "C" */
/**
* Binding table indices used by BLORP.
*/
enum {
BRW_BLORP_TEXTURE_BINDING_TABLE_INDEX,
BRW_BLORP_RENDERBUFFER_BINDING_TABLE_INDEX,
BRW_BLORP_NUM_BINDING_TABLE_ENTRIES
};
class brw_blorp_mip_info
{
public:
brw_blorp_mip_info();
void set(struct intel_mipmap_tree *mt,
unsigned int level, unsigned int layer);
struct intel_mipmap_tree *mt;
/**
* The miplevel to use.
*/
uint32_t level;
/**
* The 2D layer within the miplevel. Combined, level and layer define the
* 2D miptree slice to use.
*
* Note: if mt is a 2D multisample array texture on Gen7+ using
* INTEL_MSAA_LAYOUT_UMS or INTEL_MSAA_LAYOUT_CMS, layer is the physical
* layer holding sample 0. So, for example, if mt->num_samples == 4, then
* logical layer n corresponds to layer == 4*n.
*/
uint32_t layer;
/**
* Width of the miplevel to be used. For surfaces using
* INTEL_MSAA_LAYOUT_IMS, this is measured in samples, not pixels.
*/
uint32_t width;
/**
* Height of the miplevel to be used. For surfaces using
* INTEL_MSAA_LAYOUT_IMS, this is measured in samples, not pixels.
*/
uint32_t height;
/**
* X offset within the surface to texture from (or render to). For
* surfaces using INTEL_MSAA_LAYOUT_IMS, this is measured in samples, not
* pixels.
*/
uint32_t x_offset;
/**
* Y offset within the surface to texture from (or render to). For
* surfaces using INTEL_MSAA_LAYOUT_IMS, this is measured in samples, not
* pixels.
*/
uint32_t y_offset;
};
class brw_blorp_surface_info : public brw_blorp_mip_info
{
public:
brw_blorp_surface_info();
void set(struct brw_context *brw,
struct intel_mipmap_tree *mt,
unsigned int level, unsigned int layer,
mesa_format format, bool is_render_target);
uint32_t compute_tile_offsets(uint32_t *tile_x, uint32_t *tile_y) const;
/* Setting this flag indicates that the buffer's contents are W-tiled
* stencil data, but the surface state should be set up for Y tiled
* MESA_FORMAT_R_UNORM8 data (this is necessary because surface states don't
* support W tiling).
*
* Since W tiles are 64 pixels wide by 64 pixels high, whereas Y tiles of
* MESA_FORMAT_R_UNORM8 data are 128 pixels wide by 32 pixels high, the width and
* pitch stored in the surface state will be multiplied by 2, and the
* height will be halved. Also, since W and Y tiles store their data in a
* different order, the width and height will be rounded up to a multiple
* of the tile size, to ensure that the WM program can access the full
* width and height of the buffer.
*/
bool map_stencil_as_y_tiled;
unsigned num_samples;
/**
* Indicates if we use the standard miptree layout (ALL_LOD_IN_EACH_SLICE),
* or if we tightly pack array slices at each LOD (ALL_SLICES_AT_EACH_LOD).
*
* If ALL_SLICES_AT_EACH_LOD is set, then ARYSPC_LOD0 can be used. Ignored
* prior to Gen7.
*/
enum miptree_array_layout array_layout;
/**
* Format that should be used when setting up the surface state for this
* surface. Should correspond to one of the BRW_SURFACEFORMAT_* enums.
*/
uint32_t brw_surfaceformat;
/**
* For MSAA surfaces, MSAA layout that should be used when setting up the
* surface state for this surface.
*/
intel_msaa_layout msaa_layout;
};
struct brw_blorp_coord_transform_params
{
void setup(GLfloat src0, GLfloat src1, GLfloat dst0, GLfloat dst1,
bool mirror);
float multiplier;
float offset;
};
struct brw_blorp_wm_push_constants
{
uint32_t dst_x0;
uint32_t dst_x1;
uint32_t dst_y0;
uint32_t dst_y1;
/* Top right coordinates of the rectangular grid used for scaled blitting */
float rect_grid_x1;
float rect_grid_y1;
brw_blorp_coord_transform_params x_transform;
brw_blorp_coord_transform_params y_transform;
/* Pad out to an integral number of registers */
uint32_t pad[6];
};
/* Every 32 bytes of push constant data constitutes one GEN register. */
const unsigned int BRW_BLORP_NUM_PUSH_CONST_REGS =
sizeof(brw_blorp_wm_push_constants) / 32;
struct brw_blorp_prog_data
{
unsigned int first_curbe_grf;
/**
* True if the WM program should be run in MSDISPMODE_PERSAMPLE with more
* than one sample per pixel.
*/
bool persample_msaa_dispatch;
};
class brw_blorp_params
{
public:
brw_blorp_params(unsigned num_varyings = 0,
unsigned num_draw_buffers = 1,
unsigned num_layers = 1);
virtual uint32_t get_wm_prog(struct brw_context *brw,
brw_blorp_prog_data **prog_data) const = 0;
uint32_t x0;
uint32_t y0;
uint32_t x1;
uint32_t y1;
brw_blorp_mip_info depth;
uint32_t depth_format;
brw_blorp_surface_info src;
brw_blorp_surface_info dst;
enum gen6_hiz_op hiz_op;
bool use_wm_prog;
brw_blorp_wm_push_constants wm_push_consts;
const unsigned num_varyings;
const unsigned num_draw_buffers;
const unsigned num_layers;
};
void
brw_blorp_exec(struct brw_context *brw, const brw_blorp_params *params);
/**
* Parameters for a HiZ or depth resolve operation.
*
* For an overview of HiZ ops, see the following sections of the Sandy Bridge
* PRM, Volume 1, Part 2:
* - 7.5.3.1 Depth Buffer Clear
* - 7.5.3.2 Depth Buffer Resolve
* - 7.5.3.3 Hierarchical Depth Buffer Resolve
*/
class brw_hiz_op_params : public brw_blorp_params
{
public:
brw_hiz_op_params(struct intel_mipmap_tree *mt,
unsigned int level, unsigned int layer,
gen6_hiz_op op);
virtual uint32_t get_wm_prog(struct brw_context *brw,
brw_blorp_prog_data **prog_data) const;
};
struct brw_blorp_blit_prog_key
{
/* Number of samples per pixel that have been configured in the surface
* state for texturing from.
*/
unsigned tex_samples;
/* MSAA layout that has been configured in the surface state for texturing
* from.
*/
intel_msaa_layout tex_layout;
/* Actual number of samples per pixel in the source image. */
unsigned src_samples;
/* Actual MSAA layout used by the source image. */
intel_msaa_layout src_layout;
/* Number of samples per pixel that have been configured in the render
* target.
*/
unsigned rt_samples;
/* MSAA layout that has been configured in the render target. */
intel_msaa_layout rt_layout;
/* Actual number of samples per pixel in the destination image. */
unsigned dst_samples;
/* Actual MSAA layout used by the destination image. */
intel_msaa_layout dst_layout;
/* Type of the data to be read from the texture (one of
* BRW_REGISTER_TYPE_{UD,D,F}).
*/
enum brw_reg_type texture_data_type;
/* True if the source image is W tiled. If true, the surface state for the
* source image must be configured as Y tiled, and tex_samples must be 0.
*/
bool src_tiled_w;
/* True if the destination image is W tiled. If true, the surface state
* for the render target must be configured as Y tiled, and rt_samples must
* be 0.
*/
bool dst_tiled_w;
/* True if all source samples should be blended together to produce each
* destination pixel. If true, src_tiled_w must be false, tex_samples must
* equal src_samples, and tex_samples must be nonzero.
*/
bool blend;
/* True if the rectangle being sent through the rendering pipeline might be
* larger than the destination rectangle, so the WM program should kill any
* pixels that are outside the destination rectangle.
*/
bool use_kill;
/**
* True if the WM program should be run in MSDISPMODE_PERSAMPLE with more
* than one sample per pixel.
*/
bool persample_msaa_dispatch;
/* True for scaled blitting. */
bool blit_scaled;
/* Scale factors between the pixel grid and the grid of samples. We're
* using grid of samples for bilinear filetring in multisample scaled blits.
*/
float x_scale;
float y_scale;
/* True for blits with filter = GL_LINEAR. */
bool bilinear_filter;
};
class brw_blorp_blit_params : public brw_blorp_params
{
public:
brw_blorp_blit_params(struct brw_context *brw,
struct intel_mipmap_tree *src_mt,
unsigned src_level, unsigned src_layer,
mesa_format src_format,
struct intel_mipmap_tree *dst_mt,
unsigned dst_level, unsigned dst_layer,
mesa_format dst_format,
GLfloat src_x0, GLfloat src_y0,
GLfloat src_x1, GLfloat src_y1,
GLfloat dst_x0, GLfloat dst_y0,
GLfloat dst_x1, GLfloat dst_y1,
GLenum filter, bool mirror_x, bool mirror_y);
virtual uint32_t get_wm_prog(struct brw_context *brw,
brw_blorp_prog_data **prog_data) const;
private:
brw_blorp_blit_prog_key wm_prog_key;
};
/**
* \name BLORP internals
* \{
*
* Used internally by gen6_blorp_exec() and gen7_blorp_exec().
*/
void
gen6_blorp_init(struct brw_context *brw);
void
gen6_blorp_emit_state_base_address(struct brw_context *brw,
const brw_blorp_params *params);
void
gen6_blorp_emit_vertices(struct brw_context *brw,
const brw_blorp_params *params);
uint32_t
gen6_blorp_emit_blend_state(struct brw_context *brw,
const brw_blorp_params *params);
uint32_t
gen6_blorp_emit_cc_state(struct brw_context *brw);
uint32_t
gen6_blorp_emit_wm_constants(struct brw_context *brw,
const brw_blorp_params *params);
void
gen6_blorp_emit_vs_disable(struct brw_context *brw,
const brw_blorp_params *params);
uint32_t
gen6_blorp_emit_binding_table(struct brw_context *brw,
uint32_t wm_surf_offset_renderbuffer,
uint32_t wm_surf_offset_texture);
uint32_t
gen6_blorp_emit_depth_stencil_state(struct brw_context *brw,
const brw_blorp_params *params);
void
gen6_blorp_emit_gs_disable(struct brw_context *brw,
const brw_blorp_params *params);
void
gen6_blorp_emit_clip_disable(struct brw_context *brw);
void
gen6_blorp_emit_drawing_rectangle(struct brw_context *brw,
const brw_blorp_params *params);
uint32_t
gen6_blorp_emit_sampler_state(struct brw_context *brw,
unsigned tex_filter, unsigned max_lod,
bool non_normalized_coords);
/** \} */
#endif /* __cplusplus */