0,0 → 1,1056 |
/************************************************************************** |
* |
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. |
* All Rights Reserved. |
* |
* 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, sub license, 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 NON-INFRINGEMENT. |
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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: Keith Whitwell <keith@tungstengraphics.com> |
*/ |
|
|
#include "draw/draw_context.h" |
#include "util/u_helpers.h" |
#include "util/u_inlines.h" |
#include "util/u_math.h" |
#include "util/u_memory.h" |
#include "util/u_transfer.h" |
#include "tgsi/tgsi_parse.h" |
|
#include "i915_context.h" |
#include "i915_reg.h" |
#include "i915_state_inlines.h" |
#include "i915_fpc.h" |
#include "i915_resource.h" |
|
/* The i915 (and related graphics cores) do not support GL_CLAMP. The |
* Intel drivers for "other operating systems" implement GL_CLAMP as |
* GL_CLAMP_TO_EDGE, so the same is done here. |
*/ |
static unsigned |
translate_wrap_mode(unsigned wrap) |
{ |
switch (wrap) { |
case PIPE_TEX_WRAP_REPEAT: |
return TEXCOORDMODE_WRAP; |
case PIPE_TEX_WRAP_CLAMP: |
return TEXCOORDMODE_CLAMP_EDGE; /* not quite correct */ |
case PIPE_TEX_WRAP_CLAMP_TO_EDGE: |
return TEXCOORDMODE_CLAMP_EDGE; |
case PIPE_TEX_WRAP_CLAMP_TO_BORDER: |
return TEXCOORDMODE_CLAMP_BORDER; |
case PIPE_TEX_WRAP_MIRROR_REPEAT: |
return TEXCOORDMODE_MIRROR; |
default: |
return TEXCOORDMODE_WRAP; |
} |
} |
|
static unsigned translate_img_filter( unsigned filter ) |
{ |
switch (filter) { |
case PIPE_TEX_FILTER_NEAREST: |
return FILTER_NEAREST; |
case PIPE_TEX_FILTER_LINEAR: |
return FILTER_LINEAR; |
default: |
assert(0); |
return FILTER_NEAREST; |
} |
} |
|
static unsigned translate_mip_filter( unsigned filter ) |
{ |
switch (filter) { |
case PIPE_TEX_MIPFILTER_NONE: |
return MIPFILTER_NONE; |
case PIPE_TEX_MIPFILTER_NEAREST: |
return MIPFILTER_NEAREST; |
case PIPE_TEX_MIPFILTER_LINEAR: |
return MIPFILTER_LINEAR; |
default: |
assert(0); |
return MIPFILTER_NONE; |
} |
} |
|
|
/* None of this state is actually used for anything yet. |
*/ |
static void * |
i915_create_blend_state(struct pipe_context *pipe, |
const struct pipe_blend_state *blend) |
{ |
struct i915_blend_state *cso_data = CALLOC_STRUCT( i915_blend_state ); |
|
{ |
unsigned eqRGB = blend->rt[0].rgb_func; |
unsigned srcRGB = blend->rt[0].rgb_src_factor; |
unsigned dstRGB = blend->rt[0].rgb_dst_factor; |
|
unsigned eqA = blend->rt[0].alpha_func; |
unsigned srcA = blend->rt[0].alpha_src_factor; |
unsigned dstA = blend->rt[0].alpha_dst_factor; |
|
/* Special handling for MIN/MAX filter modes handled at |
* state_tracker level. |
*/ |
|
if (srcA != srcRGB || |
dstA != dstRGB || |
eqA != eqRGB) { |
|
cso_data->iab = (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD | |
IAB_MODIFY_ENABLE | |
IAB_ENABLE | |
IAB_MODIFY_FUNC | |
IAB_MODIFY_SRC_FACTOR | |
IAB_MODIFY_DST_FACTOR | |
SRC_ABLND_FACT(i915_translate_blend_factor(srcA)) | |
DST_ABLND_FACT(i915_translate_blend_factor(dstA)) | |
(i915_translate_blend_func(eqA) << IAB_FUNC_SHIFT)); |
} |
else { |
cso_data->iab = (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD | |
IAB_MODIFY_ENABLE | |
0); |
} |
} |
|
cso_data->modes4 |= (_3DSTATE_MODES_4_CMD | |
ENABLE_LOGIC_OP_FUNC | |
LOGIC_OP_FUNC(i915_translate_logic_op(blend->logicop_func))); |
|
if (blend->logicop_enable) |
cso_data->LIS5 |= S5_LOGICOP_ENABLE; |
|
if (blend->dither) |
cso_data->LIS5 |= S5_COLOR_DITHER_ENABLE; |
|
/* XXX here take the target fixup into account */ |
if ((blend->rt[0].colormask & PIPE_MASK_R) == 0) |
cso_data->LIS5 |= S5_WRITEDISABLE_RED; |
|
if ((blend->rt[0].colormask & PIPE_MASK_G) == 0) |
cso_data->LIS5 |= S5_WRITEDISABLE_GREEN; |
|
if ((blend->rt[0].colormask & PIPE_MASK_B) == 0) |
cso_data->LIS5 |= S5_WRITEDISABLE_BLUE; |
|
if ((blend->rt[0].colormask & PIPE_MASK_A) == 0) |
cso_data->LIS5 |= S5_WRITEDISABLE_ALPHA; |
|
if (blend->rt[0].blend_enable) { |
unsigned funcRGB = blend->rt[0].rgb_func; |
unsigned srcRGB = blend->rt[0].rgb_src_factor; |
unsigned dstRGB = blend->rt[0].rgb_dst_factor; |
|
cso_data->LIS6 |= (S6_CBUF_BLEND_ENABLE | |
SRC_BLND_FACT(i915_translate_blend_factor(srcRGB)) | |
DST_BLND_FACT(i915_translate_blend_factor(dstRGB)) | |
(i915_translate_blend_func(funcRGB) << S6_CBUF_BLEND_FUNC_SHIFT)); |
} |
|
return cso_data; |
} |
|
static void i915_bind_blend_state(struct pipe_context *pipe, |
void *blend) |
{ |
struct i915_context *i915 = i915_context(pipe); |
|
if (i915->blend == blend) |
return; |
|
i915->blend = (struct i915_blend_state*)blend; |
|
i915->dirty |= I915_NEW_BLEND; |
} |
|
|
static void i915_delete_blend_state(struct pipe_context *pipe, void *blend) |
{ |
FREE(blend); |
} |
|
static void i915_set_blend_color( struct pipe_context *pipe, |
const struct pipe_blend_color *blend_color ) |
{ |
struct i915_context *i915 = i915_context(pipe); |
|
if (!blend_color) |
return; |
|
i915->blend_color = *blend_color; |
|
i915->dirty |= I915_NEW_BLEND; |
} |
|
static void i915_set_stencil_ref( struct pipe_context *pipe, |
const struct pipe_stencil_ref *stencil_ref ) |
{ |
struct i915_context *i915 = i915_context(pipe); |
|
i915->stencil_ref = *stencil_ref; |
|
i915->dirty |= I915_NEW_DEPTH_STENCIL; |
} |
|
static void * |
i915_create_sampler_state(struct pipe_context *pipe, |
const struct pipe_sampler_state *sampler) |
{ |
struct i915_sampler_state *cso = CALLOC_STRUCT( i915_sampler_state ); |
const unsigned ws = sampler->wrap_s; |
const unsigned wt = sampler->wrap_t; |
const unsigned wr = sampler->wrap_r; |
unsigned minFilt, magFilt; |
unsigned mipFilt; |
|
cso->templ = *sampler; |
|
mipFilt = translate_mip_filter(sampler->min_mip_filter); |
minFilt = translate_img_filter( sampler->min_img_filter ); |
magFilt = translate_img_filter( sampler->mag_img_filter ); |
|
if (sampler->max_anisotropy > 1) |
minFilt = magFilt = FILTER_ANISOTROPIC; |
|
if (sampler->max_anisotropy > 2) { |
cso->state[0] |= SS2_MAX_ANISO_4; |
} |
|
{ |
int b = (int) (sampler->lod_bias * 16.0); |
b = CLAMP(b, -256, 255); |
cso->state[0] |= ((b << SS2_LOD_BIAS_SHIFT) & SS2_LOD_BIAS_MASK); |
} |
|
/* Shadow: |
*/ |
if (sampler->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) |
{ |
cso->state[0] |= (SS2_SHADOW_ENABLE | |
i915_translate_shadow_compare_func(sampler->compare_func)); |
|
minFilt = FILTER_4X4_FLAT; |
magFilt = FILTER_4X4_FLAT; |
} |
|
cso->state[0] |= ((minFilt << SS2_MIN_FILTER_SHIFT) | |
(mipFilt << SS2_MIP_FILTER_SHIFT) | |
(magFilt << SS2_MAG_FILTER_SHIFT)); |
|
cso->state[1] |= |
((translate_wrap_mode(ws) << SS3_TCX_ADDR_MODE_SHIFT) | |
(translate_wrap_mode(wt) << SS3_TCY_ADDR_MODE_SHIFT) | |
(translate_wrap_mode(wr) << SS3_TCZ_ADDR_MODE_SHIFT)); |
|
if (sampler->normalized_coords) |
cso->state[1] |= SS3_NORMALIZED_COORDS; |
|
{ |
int minlod = (int) (16.0 * sampler->min_lod); |
int maxlod = (int) (16.0 * sampler->max_lod); |
minlod = CLAMP(minlod, 0, 16 * 11); |
maxlod = CLAMP(maxlod, 0, 16 * 11); |
|
if (minlod > maxlod) |
maxlod = minlod; |
|
cso->minlod = minlod; |
cso->maxlod = maxlod; |
} |
|
{ |
ubyte r = float_to_ubyte(sampler->border_color.f[0]); |
ubyte g = float_to_ubyte(sampler->border_color.f[1]); |
ubyte b = float_to_ubyte(sampler->border_color.f[2]); |
ubyte a = float_to_ubyte(sampler->border_color.f[3]); |
cso->state[2] = I915PACKCOLOR8888(r, g, b, a); |
} |
return cso; |
} |
|
static void |
i915_bind_vertex_sampler_states(struct pipe_context *pipe, |
unsigned num_samplers, |
void **samplers) |
{ |
struct i915_context *i915 = i915_context(pipe); |
unsigned i; |
|
assert(num_samplers <= Elements(i915->vertex_samplers)); |
|
/* Check for no-op */ |
if (num_samplers == i915->num_vertex_samplers && |
!memcmp(i915->vertex_samplers, samplers, num_samplers * sizeof(void *))) |
return; |
|
for (i = 0; i < num_samplers; ++i) |
i915->vertex_samplers[i] = samplers[i]; |
for (i = num_samplers; i < Elements(i915->vertex_samplers); ++i) |
i915->vertex_samplers[i] = NULL; |
|
i915->num_vertex_samplers = num_samplers; |
|
draw_set_samplers(i915->draw, |
PIPE_SHADER_VERTEX, |
i915->vertex_samplers, |
i915->num_vertex_samplers); |
} |
|
|
|
static void i915_bind_fragment_sampler_states(struct pipe_context *pipe, |
unsigned num, void **sampler) |
{ |
struct i915_context *i915 = i915_context(pipe); |
unsigned i; |
|
/* Check for no-op */ |
if (num == i915->num_samplers && |
!memcmp(i915->sampler, sampler, num * sizeof(void *))) |
return; |
|
for (i = 0; i < num; ++i) |
i915->sampler[i] = sampler[i]; |
for (i = num; i < PIPE_MAX_SAMPLERS; ++i) |
i915->sampler[i] = NULL; |
|
i915->num_samplers = num; |
|
i915->dirty |= I915_NEW_SAMPLER; |
} |
|
static void i915_delete_sampler_state(struct pipe_context *pipe, |
void *sampler) |
{ |
FREE(sampler); |
} |
|
|
/** |
* Called before drawing VBO to map vertex samplers and hand them to draw |
*/ |
void |
i915_prepare_vertex_sampling(struct i915_context *i915) |
{ |
struct i915_winsys *iws = i915->iws; |
unsigned i,j; |
uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS]; |
uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS]; |
uint32_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS]; |
unsigned num = i915->num_vertex_sampler_views; |
struct pipe_sampler_view **views = i915->vertex_sampler_views; |
|
assert(num <= PIPE_MAX_SAMPLERS); |
if (!num) |
return; |
|
for (i = 0; i < PIPE_MAX_SAMPLERS; i++) { |
struct pipe_sampler_view *view = i < num ? views[i] : NULL; |
|
if (view) { |
struct pipe_resource *tex = view->texture; |
struct i915_texture *i915_tex = i915_texture(tex); |
ubyte *addr; |
|
/* We're referencing the texture's internal data, so save a |
* reference to it. |
*/ |
pipe_resource_reference(&i915->mapped_vs_tex[i], tex); |
|
i915->mapped_vs_tex_buffer[i] = i915_tex->buffer; |
addr = iws->buffer_map(iws, |
i915_tex->buffer, |
FALSE /* read only */); |
|
/* Setup array of mipmap level pointers */ |
/* FIXME: handle 3D textures? */ |
for (j = view->u.tex.first_level; j <= tex->last_level; j++) { |
mip_offsets[j] = i915_texture_offset(i915_tex, j , 0 /* FIXME depth */); |
row_stride[j] = i915_tex->stride; |
img_stride[j] = 0; /* FIXME */; |
} |
|
draw_set_mapped_texture(i915->draw, |
PIPE_SHADER_VERTEX, |
i, |
tex->width0, tex->height0, tex->depth0, |
view->u.tex.first_level, tex->last_level, |
addr, |
row_stride, img_stride, mip_offsets); |
} else |
i915->mapped_vs_tex[i] = NULL; |
} |
} |
|
void |
i915_cleanup_vertex_sampling(struct i915_context *i915) |
{ |
struct i915_winsys *iws = i915->iws; |
unsigned i; |
for (i = 0; i < Elements(i915->mapped_vs_tex); i++) { |
if (i915->mapped_vs_tex_buffer[i]) { |
iws->buffer_unmap(iws, i915->mapped_vs_tex_buffer[i]); |
pipe_resource_reference(&i915->mapped_vs_tex[i], NULL); |
} |
} |
} |
|
|
|
/** XXX move someday? Or consolidate all these simple state setters |
* into one file. |
*/ |
|
static void * |
i915_create_depth_stencil_state(struct pipe_context *pipe, |
const struct pipe_depth_stencil_alpha_state *depth_stencil) |
{ |
struct i915_depth_stencil_state *cso = CALLOC_STRUCT( i915_depth_stencil_state ); |
|
{ |
int testmask = depth_stencil->stencil[0].valuemask & 0xff; |
int writemask = depth_stencil->stencil[0].writemask & 0xff; |
|
cso->stencil_modes4 |= (_3DSTATE_MODES_4_CMD | |
ENABLE_STENCIL_TEST_MASK | |
STENCIL_TEST_MASK(testmask) | |
ENABLE_STENCIL_WRITE_MASK | |
STENCIL_WRITE_MASK(writemask)); |
} |
|
if (depth_stencil->stencil[0].enabled) { |
int test = i915_translate_compare_func(depth_stencil->stencil[0].func); |
int fop = i915_translate_stencil_op(depth_stencil->stencil[0].fail_op); |
int dfop = i915_translate_stencil_op(depth_stencil->stencil[0].zfail_op); |
int dpop = i915_translate_stencil_op(depth_stencil->stencil[0].zpass_op); |
|
cso->stencil_LIS5 |= (S5_STENCIL_TEST_ENABLE | |
S5_STENCIL_WRITE_ENABLE | |
(test << S5_STENCIL_TEST_FUNC_SHIFT) | |
(fop << S5_STENCIL_FAIL_SHIFT) | |
(dfop << S5_STENCIL_PASS_Z_FAIL_SHIFT) | |
(dpop << S5_STENCIL_PASS_Z_PASS_SHIFT)); |
} |
|
if (depth_stencil->stencil[1].enabled) { |
int test = i915_translate_compare_func(depth_stencil->stencil[1].func); |
int fop = i915_translate_stencil_op(depth_stencil->stencil[1].fail_op); |
int dfop = i915_translate_stencil_op(depth_stencil->stencil[1].zfail_op); |
int dpop = i915_translate_stencil_op(depth_stencil->stencil[1].zpass_op); |
int tmask = depth_stencil->stencil[1].valuemask & 0xff; |
int wmask = depth_stencil->stencil[1].writemask & 0xff; |
|
cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | |
BFO_ENABLE_STENCIL_FUNCS | |
BFO_ENABLE_STENCIL_TWO_SIDE | |
BFO_ENABLE_STENCIL_REF | |
BFO_STENCIL_TWO_SIDE | |
(test << BFO_STENCIL_TEST_SHIFT) | |
(fop << BFO_STENCIL_FAIL_SHIFT) | |
(dfop << BFO_STENCIL_PASS_Z_FAIL_SHIFT) | |
(dpop << BFO_STENCIL_PASS_Z_PASS_SHIFT)); |
|
cso->bfo[1] = (_3DSTATE_BACKFACE_STENCIL_MASKS | |
BFM_ENABLE_STENCIL_TEST_MASK | |
BFM_ENABLE_STENCIL_WRITE_MASK | |
(tmask << BFM_STENCIL_TEST_MASK_SHIFT) | |
(wmask << BFM_STENCIL_WRITE_MASK_SHIFT)); |
} |
else { |
/* This actually disables two-side stencil: The bit set is a |
* modify-enable bit to indicate we are changing the two-side |
* setting. Then there is a symbolic zero to show that we are |
* setting the flag to zero/off. |
*/ |
cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | |
BFO_ENABLE_STENCIL_TWO_SIDE | |
0); |
cso->bfo[1] = 0; |
} |
|
if (depth_stencil->depth.enabled) { |
int func = i915_translate_compare_func(depth_stencil->depth.func); |
|
cso->depth_LIS6 |= (S6_DEPTH_TEST_ENABLE | |
(func << S6_DEPTH_TEST_FUNC_SHIFT)); |
|
if (depth_stencil->depth.writemask) |
cso->depth_LIS6 |= S6_DEPTH_WRITE_ENABLE; |
} |
|
if (depth_stencil->alpha.enabled) { |
int test = i915_translate_compare_func(depth_stencil->alpha.func); |
ubyte refByte = float_to_ubyte(depth_stencil->alpha.ref_value); |
|
cso->depth_LIS6 |= (S6_ALPHA_TEST_ENABLE | |
(test << S6_ALPHA_TEST_FUNC_SHIFT) | |
(((unsigned) refByte) << S6_ALPHA_REF_SHIFT)); |
} |
|
return cso; |
} |
|
static void i915_bind_depth_stencil_state(struct pipe_context *pipe, |
void *depth_stencil) |
{ |
struct i915_context *i915 = i915_context(pipe); |
|
if (i915->depth_stencil == depth_stencil) |
return; |
|
i915->depth_stencil = (const struct i915_depth_stencil_state *)depth_stencil; |
|
i915->dirty |= I915_NEW_DEPTH_STENCIL; |
} |
|
static void i915_delete_depth_stencil_state(struct pipe_context *pipe, |
void *depth_stencil) |
{ |
FREE(depth_stencil); |
} |
|
|
static void i915_set_scissor_states( struct pipe_context *pipe, |
unsigned start_slot, |
unsigned num_scissors, |
const struct pipe_scissor_state *scissor ) |
{ |
struct i915_context *i915 = i915_context(pipe); |
|
memcpy( &i915->scissor, scissor, sizeof(*scissor) ); |
i915->dirty |= I915_NEW_SCISSOR; |
} |
|
|
static void i915_set_polygon_stipple( struct pipe_context *pipe, |
const struct pipe_poly_stipple *stipple ) |
{ |
} |
|
|
|
static void * |
i915_create_fs_state(struct pipe_context *pipe, |
const struct pipe_shader_state *templ) |
{ |
struct i915_context *i915 = i915_context(pipe); |
struct i915_fragment_shader *ifs = CALLOC_STRUCT(i915_fragment_shader); |
if (!ifs) |
return NULL; |
|
ifs->draw_data = draw_create_fragment_shader(i915->draw, templ); |
ifs->state.tokens = tgsi_dup_tokens(templ->tokens); |
|
tgsi_scan_shader(templ->tokens, &ifs->info); |
|
/* The shader's compiled to i915 instructions here */ |
i915_translate_fragment_program(i915, ifs); |
|
return ifs; |
} |
|
static void |
i915_bind_fs_state(struct pipe_context *pipe, void *shader) |
{ |
struct i915_context *i915 = i915_context(pipe); |
|
if (i915->fs == shader) |
return; |
|
i915->fs = (struct i915_fragment_shader*) shader; |
|
draw_bind_fragment_shader(i915->draw, (i915->fs ? i915->fs->draw_data : NULL)); |
|
i915->dirty |= I915_NEW_FS; |
} |
|
static |
void i915_delete_fs_state(struct pipe_context *pipe, void *shader) |
{ |
struct i915_fragment_shader *ifs = (struct i915_fragment_shader *) shader; |
|
FREE(ifs->decl); |
ifs->decl = NULL; |
|
if (ifs->program) { |
FREE(ifs->program); |
ifs->program = NULL; |
FREE((struct tgsi_token *)ifs->state.tokens); |
ifs->state.tokens = NULL; |
} |
|
ifs->program_len = 0; |
ifs->decl_len = 0; |
|
FREE(ifs); |
} |
|
|
static void * |
i915_create_vs_state(struct pipe_context *pipe, |
const struct pipe_shader_state *templ) |
{ |
struct i915_context *i915 = i915_context(pipe); |
|
/* just pass-through to draw module */ |
return draw_create_vertex_shader(i915->draw, templ); |
} |
|
static void i915_bind_vs_state(struct pipe_context *pipe, void *shader) |
{ |
struct i915_context *i915 = i915_context(pipe); |
|
if (i915->vs == shader) |
return; |
|
i915->vs = shader; |
|
/* just pass-through to draw module */ |
draw_bind_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); |
|
i915->dirty |= I915_NEW_VS; |
} |
|
static void i915_delete_vs_state(struct pipe_context *pipe, void *shader) |
{ |
struct i915_context *i915 = i915_context(pipe); |
|
/* just pass-through to draw module */ |
draw_delete_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); |
} |
|
static void i915_set_constant_buffer(struct pipe_context *pipe, |
uint shader, uint index, |
struct pipe_constant_buffer *cb) |
{ |
struct i915_context *i915 = i915_context(pipe); |
struct pipe_resource *buf = cb ? cb->buffer : NULL; |
unsigned new_num = 0; |
boolean diff = TRUE; |
|
/* XXX don't support geom shaders now */ |
if (shader == PIPE_SHADER_GEOMETRY) |
return; |
|
if (cb && cb->user_buffer) { |
buf = i915_user_buffer_create(pipe->screen, (void *) cb->user_buffer, |
cb->buffer_size, |
PIPE_BIND_CONSTANT_BUFFER); |
} |
|
/* if we have a new buffer compare it with the old one */ |
if (buf) { |
struct i915_buffer *ibuf = i915_buffer(buf); |
struct pipe_resource *old_buf = i915->constants[shader]; |
struct i915_buffer *old = old_buf ? i915_buffer(old_buf) : NULL; |
unsigned old_num = i915->current.num_user_constants[shader]; |
|
new_num = ibuf->b.b.width0 / 4 * sizeof(float); |
|
if (old_num == new_num) { |
if (old_num == 0) |
diff = FALSE; |
#if 0 |
/* XXX no point in running this code since st/mesa only uses user buffers */ |
/* Can't compare the buffer data since they are userbuffers */ |
else if (old && old->free_on_destroy) |
diff = memcmp(old->data, ibuf->data, ibuf->b.b.width0); |
#else |
(void)old; |
#endif |
} |
} else { |
diff = i915->current.num_user_constants[shader] != 0; |
} |
|
pipe_resource_reference(&i915->constants[shader], buf); |
i915->current.num_user_constants[shader] = new_num; |
|
if (diff) |
i915->dirty |= shader == PIPE_SHADER_VERTEX ? I915_NEW_VS_CONSTANTS : I915_NEW_FS_CONSTANTS; |
|
if (cb && cb->user_buffer) { |
pipe_resource_reference(&buf, NULL); |
} |
} |
|
|
static void i915_set_fragment_sampler_views(struct pipe_context *pipe, |
unsigned num, |
struct pipe_sampler_view **views) |
{ |
struct i915_context *i915 = i915_context(pipe); |
uint i; |
|
assert(num <= PIPE_MAX_SAMPLERS); |
|
/* Check for no-op */ |
if (num == i915->num_fragment_sampler_views && |
!memcmp(i915->fragment_sampler_views, views, num * sizeof(struct pipe_sampler_view *))) |
return; |
|
for (i = 0; i < num; i++) { |
/* Note: we're using pipe_sampler_view_release() here to work around |
* a possible crash when the old view belongs to another context that |
* was already destroyed. |
*/ |
pipe_sampler_view_release(pipe, &i915->fragment_sampler_views[i]); |
pipe_sampler_view_reference(&i915->fragment_sampler_views[i], |
views[i]); |
} |
|
for (i = num; i < i915->num_fragment_sampler_views; i++) |
pipe_sampler_view_release(pipe, &i915->fragment_sampler_views[i]); |
|
i915->num_fragment_sampler_views = num; |
|
i915->dirty |= I915_NEW_SAMPLER_VIEW; |
} |
|
static void |
i915_set_vertex_sampler_views(struct pipe_context *pipe, |
unsigned num, |
struct pipe_sampler_view **views) |
{ |
struct i915_context *i915 = i915_context(pipe); |
uint i; |
|
assert(num <= Elements(i915->vertex_sampler_views)); |
|
/* Check for no-op */ |
if (num == i915->num_vertex_sampler_views && |
!memcmp(i915->vertex_sampler_views, views, num * sizeof(struct pipe_sampler_view *))) { |
return; |
} |
|
for (i = 0; i < Elements(i915->vertex_sampler_views); i++) { |
struct pipe_sampler_view *view = i < num ? views[i] : NULL; |
|
pipe_sampler_view_reference(&i915->vertex_sampler_views[i], view); |
} |
|
i915->num_vertex_sampler_views = num; |
|
draw_set_sampler_views(i915->draw, |
PIPE_SHADER_VERTEX, |
i915->vertex_sampler_views, |
i915->num_vertex_sampler_views); |
} |
|
|
static struct pipe_sampler_view * |
i915_create_sampler_view(struct pipe_context *pipe, |
struct pipe_resource *texture, |
const struct pipe_sampler_view *templ) |
{ |
struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view); |
|
if (view) { |
*view = *templ; |
view->reference.count = 1; |
view->texture = NULL; |
pipe_resource_reference(&view->texture, texture); |
view->context = pipe; |
} |
|
return view; |
} |
|
|
static void |
i915_sampler_view_destroy(struct pipe_context *pipe, |
struct pipe_sampler_view *view) |
{ |
pipe_resource_reference(&view->texture, NULL); |
FREE(view); |
} |
|
|
static void i915_set_framebuffer_state(struct pipe_context *pipe, |
const struct pipe_framebuffer_state *fb) |
{ |
struct i915_context *i915 = i915_context(pipe); |
int i; |
|
i915->framebuffer.width = fb->width; |
i915->framebuffer.height = fb->height; |
i915->framebuffer.nr_cbufs = fb->nr_cbufs; |
for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { |
pipe_surface_reference(&i915->framebuffer.cbufs[i], |
i < fb->nr_cbufs ? fb->cbufs[i] : NULL); |
} |
pipe_surface_reference(&i915->framebuffer.zsbuf, fb->zsbuf); |
|
i915->dirty |= I915_NEW_FRAMEBUFFER; |
} |
|
|
|
static void i915_set_clip_state( struct pipe_context *pipe, |
const struct pipe_clip_state *clip ) |
{ |
struct i915_context *i915 = i915_context(pipe); |
|
i915->clip = *clip; |
|
draw_set_clip_state(i915->draw, clip); |
|
i915->dirty |= I915_NEW_CLIP; |
} |
|
|
|
/* Called when driver state tracker notices changes to the viewport |
* matrix: |
*/ |
static void i915_set_viewport_states( struct pipe_context *pipe, |
unsigned start_slot, |
unsigned num_viewports, |
const struct pipe_viewport_state *viewport ) |
{ |
struct i915_context *i915 = i915_context(pipe); |
|
i915->viewport = *viewport; /* struct copy */ |
|
/* pass the viewport info to the draw module */ |
draw_set_viewport_states(i915->draw, start_slot, num_viewports, |
&i915->viewport); |
|
i915->dirty |= I915_NEW_VIEWPORT; |
} |
|
|
static void * |
i915_create_rasterizer_state(struct pipe_context *pipe, |
const struct pipe_rasterizer_state *rasterizer) |
{ |
struct i915_rasterizer_state *cso = CALLOC_STRUCT( i915_rasterizer_state ); |
|
cso->templ = *rasterizer; |
cso->color_interp = rasterizer->flatshade ? INTERP_CONSTANT : INTERP_LINEAR; |
cso->light_twoside = rasterizer->light_twoside; |
cso->ds[0].u = _3DSTATE_DEPTH_OFFSET_SCALE; |
cso->ds[1].f = rasterizer->offset_scale; |
if (rasterizer->poly_stipple_enable) { |
cso->st |= ST1_ENABLE; |
} |
|
if (rasterizer->scissor) |
cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | ENABLE_SCISSOR_RECT; |
else |
cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT; |
|
switch (rasterizer->cull_face) { |
case PIPE_FACE_NONE: |
cso->LIS4 |= S4_CULLMODE_NONE; |
break; |
case PIPE_FACE_FRONT: |
if (rasterizer->front_ccw) |
cso->LIS4 |= S4_CULLMODE_CCW; |
else |
cso->LIS4 |= S4_CULLMODE_CW; |
break; |
case PIPE_FACE_BACK: |
if (rasterizer->front_ccw) |
cso->LIS4 |= S4_CULLMODE_CW; |
else |
cso->LIS4 |= S4_CULLMODE_CCW; |
break; |
case PIPE_FACE_FRONT_AND_BACK: |
cso->LIS4 |= S4_CULLMODE_BOTH; |
break; |
} |
|
{ |
int line_width = CLAMP((int)(rasterizer->line_width * 2), 1, 0xf); |
|
cso->LIS4 |= line_width << S4_LINE_WIDTH_SHIFT; |
|
if (rasterizer->line_smooth) |
cso->LIS4 |= S4_LINE_ANTIALIAS_ENABLE; |
} |
|
{ |
int point_size = CLAMP((int) rasterizer->point_size, 1, 0xff); |
|
cso->LIS4 |= point_size << S4_POINT_WIDTH_SHIFT; |
} |
|
if (rasterizer->flatshade) { |
cso->LIS4 |= (S4_FLATSHADE_ALPHA | |
S4_FLATSHADE_COLOR | |
S4_FLATSHADE_SPECULAR); |
} |
|
cso->LIS7 = fui( rasterizer->offset_units ); |
|
|
return cso; |
} |
|
static void i915_bind_rasterizer_state( struct pipe_context *pipe, |
void *raster ) |
{ |
struct i915_context *i915 = i915_context(pipe); |
|
if (i915->rasterizer == raster) |
return; |
|
i915->rasterizer = (struct i915_rasterizer_state *)raster; |
|
/* pass-through to draw module */ |
draw_set_rasterizer_state(i915->draw, |
(i915->rasterizer ? &(i915->rasterizer->templ) : NULL), |
raster); |
|
i915->dirty |= I915_NEW_RASTERIZER; |
} |
|
static void i915_delete_rasterizer_state(struct pipe_context *pipe, |
void *raster) |
{ |
FREE(raster); |
} |
|
static void i915_set_vertex_buffers(struct pipe_context *pipe, |
unsigned start_slot, unsigned count, |
const struct pipe_vertex_buffer *buffers) |
{ |
struct i915_context *i915 = i915_context(pipe); |
struct draw_context *draw = i915->draw; |
|
util_set_vertex_buffers_count(i915->vertex_buffers, |
&i915->nr_vertex_buffers, |
buffers, start_slot, count); |
|
/* pass-through to draw module */ |
draw_set_vertex_buffers(draw, start_slot, count, buffers); |
} |
|
static void * |
i915_create_vertex_elements_state(struct pipe_context *pipe, |
unsigned count, |
const struct pipe_vertex_element *attribs) |
{ |
struct i915_velems_state *velems; |
assert(count <= PIPE_MAX_ATTRIBS); |
velems = (struct i915_velems_state *) MALLOC(sizeof(struct i915_velems_state)); |
if (velems) { |
velems->count = count; |
memcpy(velems->velem, attribs, sizeof(*attribs) * count); |
} |
return velems; |
} |
|
static void |
i915_bind_vertex_elements_state(struct pipe_context *pipe, |
void *velems) |
{ |
struct i915_context *i915 = i915_context(pipe); |
struct i915_velems_state *i915_velems = (struct i915_velems_state *) velems; |
|
if (i915->velems == velems) |
return; |
|
i915->velems = velems; |
|
/* pass-through to draw module */ |
if (i915_velems) { |
draw_set_vertex_elements(i915->draw, |
i915_velems->count, i915_velems->velem); |
} |
} |
|
static void |
i915_delete_vertex_elements_state(struct pipe_context *pipe, void *velems) |
{ |
FREE( velems ); |
} |
|
static void i915_set_index_buffer(struct pipe_context *pipe, |
const struct pipe_index_buffer *ib) |
{ |
struct i915_context *i915 = i915_context(pipe); |
|
if (ib) |
memcpy(&i915->index_buffer, ib, sizeof(i915->index_buffer)); |
else |
memset(&i915->index_buffer, 0, sizeof(i915->index_buffer)); |
} |
|
static void |
i915_set_sample_mask(struct pipe_context *pipe, |
unsigned sample_mask) |
{ |
} |
|
void |
i915_init_state_functions( struct i915_context *i915 ) |
{ |
i915->base.create_blend_state = i915_create_blend_state; |
i915->base.bind_blend_state = i915_bind_blend_state; |
i915->base.delete_blend_state = i915_delete_blend_state; |
|
i915->base.create_sampler_state = i915_create_sampler_state; |
i915->base.bind_fragment_sampler_states = i915_bind_fragment_sampler_states; |
i915->base.bind_vertex_sampler_states = i915_bind_vertex_sampler_states; |
i915->base.delete_sampler_state = i915_delete_sampler_state; |
|
i915->base.create_depth_stencil_alpha_state = i915_create_depth_stencil_state; |
i915->base.bind_depth_stencil_alpha_state = i915_bind_depth_stencil_state; |
i915->base.delete_depth_stencil_alpha_state = i915_delete_depth_stencil_state; |
|
i915->base.create_rasterizer_state = i915_create_rasterizer_state; |
i915->base.bind_rasterizer_state = i915_bind_rasterizer_state; |
i915->base.delete_rasterizer_state = i915_delete_rasterizer_state; |
i915->base.create_fs_state = i915_create_fs_state; |
i915->base.bind_fs_state = i915_bind_fs_state; |
i915->base.delete_fs_state = i915_delete_fs_state; |
i915->base.create_vs_state = i915_create_vs_state; |
i915->base.bind_vs_state = i915_bind_vs_state; |
i915->base.delete_vs_state = i915_delete_vs_state; |
i915->base.create_vertex_elements_state = i915_create_vertex_elements_state; |
i915->base.bind_vertex_elements_state = i915_bind_vertex_elements_state; |
i915->base.delete_vertex_elements_state = i915_delete_vertex_elements_state; |
|
i915->base.set_blend_color = i915_set_blend_color; |
i915->base.set_stencil_ref = i915_set_stencil_ref; |
i915->base.set_clip_state = i915_set_clip_state; |
i915->base.set_sample_mask = i915_set_sample_mask; |
i915->base.set_constant_buffer = i915_set_constant_buffer; |
i915->base.set_framebuffer_state = i915_set_framebuffer_state; |
|
i915->base.set_polygon_stipple = i915_set_polygon_stipple; |
i915->base.set_scissor_states = i915_set_scissor_states; |
i915->base.set_fragment_sampler_views = i915_set_fragment_sampler_views; |
i915->base.set_vertex_sampler_views = i915_set_vertex_sampler_views; |
i915->base.create_sampler_view = i915_create_sampler_view; |
i915->base.sampler_view_destroy = i915_sampler_view_destroy; |
i915->base.set_viewport_states = i915_set_viewport_states; |
i915->base.set_vertex_buffers = i915_set_vertex_buffers; |
i915->base.set_index_buffer = i915_set_index_buffer; |
} |