ilo: add ilo_state_cc

We want to replace ilo_dsa_state and ilo_blend_state with ilo_state_cc.
This commit is contained in:
Chia-I Wu
2015-05-11 14:23:49 +08:00
parent 6be8b6053d
commit 62bb643718
3 changed files with 1091 additions and 0 deletions
+2
View File
@@ -23,6 +23,8 @@ C_SOURCES := \
core/ilo_state_3d.h \
core/ilo_state_3d_bottom.c \
core/ilo_state_3d_top.c \
core/ilo_state_cc.c \
core/ilo_state_cc.h \
core/ilo_state_raster.c \
core/ilo_state_raster.h \
core/ilo_state_sampler.c \
+890
View File
@@ -0,0 +1,890 @@
/*
* Mesa 3-D graphics library
*
* Copyright (C) 2012-2015 LunarG, 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 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:
* Chia-I Wu <olv@lunarg.com>
*/
#include "ilo_debug.h"
#include "ilo_state_cc.h"
static bool
cc_validate_gen6_stencil(const struct ilo_dev *dev,
const struct ilo_state_cc_info *info)
{
const struct ilo_state_cc_stencil_info *stencil = &info->stencil;
ILO_DEV_ASSERT(dev, 6, 8);
/*
* From the Sandy Bridge PRM, volume 2 part 1, page 359:
*
* "If the Depth Buffer is either undefined or does not have a surface
* format of D32_FLOAT_S8X24_UINT or D24_UNORM_S8_UINT and separate
* stencil buffer is disabled, Stencil Test Enable must be DISABLED"
*
* From the Sandy Bridge PRM, volume 2 part 1, page 370:
*
* "This field (Stencil Test Enable) cannot be enabled if Surface
* Format in 3DSTATE_DEPTH_BUFFER is set to D16_UNORM."
*/
if (stencil->test_enable)
assert(stencil->cv_has_buffer);
return true;
}
static bool
cc_validate_gen6_depth(const struct ilo_dev *dev,
const struct ilo_state_cc_info *info)
{
const struct ilo_state_cc_depth_info *depth = &info->depth;
ILO_DEV_ASSERT(dev, 6, 8);
/*
* From the Sandy Bridge PRM, volume 2 part 1, page 360:
*
* "Enabling the Depth Test function without defining a Depth Buffer is
* UNDEFINED."
*
* From the Sandy Bridge PRM, volume 2 part 1, page 375:
*
* "A Depth Buffer must be defined before enabling writes to it, or
* operation is UNDEFINED."
*/
if (depth->test_enable || depth->write_enable)
assert(depth->cv_has_buffer);
return true;
}
static bool
cc_set_gen6_DEPTH_STENCIL_STATE(struct ilo_state_cc *cc,
const struct ilo_dev *dev,
const struct ilo_state_cc_info *info)
{
const struct ilo_state_cc_stencil_info *stencil = &info->stencil;
const struct ilo_state_cc_depth_info *depth = &info->depth;
const struct ilo_state_cc_params_info *params = &info->params;
uint32_t dw0, dw1, dw2;
ILO_DEV_ASSERT(dev, 6, 7.5);
if (!cc_validate_gen6_stencil(dev, info) ||
!cc_validate_gen6_depth(dev, info))
return false;
dw0 = 0;
dw1 = 0;
if (stencil->test_enable) {
const struct ilo_state_cc_stencil_op_info *front = &stencil->front;
const struct ilo_state_cc_stencil_params_info *front_p =
&params->stencil_front;
const struct ilo_state_cc_stencil_op_info *back;
const struct ilo_state_cc_stencil_params_info *back_p;
dw0 |= GEN6_ZS_DW0_STENCIL_TEST_ENABLE;
if (stencil->twosided_enable) {
dw0 |= GEN6_ZS_DW0_STENCIL1_ENABLE;
back = &stencil->back;
back_p = &params->stencil_back;
} else {
back = &stencil->front;
back_p = &params->stencil_front;
}
dw0 |= front->test_func << GEN6_ZS_DW0_STENCIL_FUNC__SHIFT |
front->fail_op << GEN6_ZS_DW0_STENCIL_FAIL_OP__SHIFT |
front->zfail_op << GEN6_ZS_DW0_STENCIL_ZFAIL_OP__SHIFT |
front->zpass_op << GEN6_ZS_DW0_STENCIL_ZPASS_OP__SHIFT |
back->test_func << GEN6_ZS_DW0_STENCIL1_FUNC__SHIFT |
back->fail_op << GEN6_ZS_DW0_STENCIL1_FAIL_OP__SHIFT |
back->zfail_op << GEN6_ZS_DW0_STENCIL1_ZFAIL_OP__SHIFT |
back->zpass_op << GEN6_ZS_DW0_STENCIL1_ZPASS_OP__SHIFT;
/*
* From the Ivy Bridge PRM, volume 2 part 1, page 363:
*
* "If this field (Stencil Buffer Write Enable) is enabled, Stencil
* Test Enable must also be enabled."
*
* This is different from depth write enable, which is independent from
* depth test enable.
*/
if (front_p->write_mask || back_p->write_mask)
dw0 |= GEN6_ZS_DW0_STENCIL_WRITE_ENABLE;
dw1 |= front_p->test_mask << GEN6_ZS_DW1_STENCIL_TEST_MASK__SHIFT |
front_p->write_mask << GEN6_ZS_DW1_STENCIL_WRITE_MASK__SHIFT |
back_p->test_mask << GEN6_ZS_DW1_STENCIL1_TEST_MASK__SHIFT |
back_p->write_mask << GEN6_ZS_DW1_STENCIL1_WRITE_MASK__SHIFT;
}
dw2 = 0;
if (depth->test_enable) {
dw2 |= GEN6_ZS_DW2_DEPTH_TEST_ENABLE |
depth->test_func << GEN6_ZS_DW2_DEPTH_FUNC__SHIFT;
} else {
dw2 |= GEN6_COMPAREFUNCTION_ALWAYS << GEN6_ZS_DW2_DEPTH_FUNC__SHIFT;
}
/* independent from depth->test_enable */
if (depth->write_enable)
dw2 |= GEN6_ZS_DW2_DEPTH_WRITE_ENABLE;
STATIC_ASSERT(ARRAY_SIZE(cc->ds) >= 3);
cc->ds[0] = dw0;
cc->ds[1] = dw1;
cc->ds[2] = dw2;
return true;
}
static bool
cc_set_gen8_3DSTATE_WM_DEPTH_STENCIL(struct ilo_state_cc *cc,
const struct ilo_dev *dev,
const struct ilo_state_cc_info *info)
{
const struct ilo_state_cc_stencil_info *stencil = &info->stencil;
const struct ilo_state_cc_depth_info *depth = &info->depth;
const struct ilo_state_cc_params_info *params = &info->params;
uint32_t dw1, dw2;
ILO_DEV_ASSERT(dev, 8, 8);
if (!cc_validate_gen6_stencil(dev, info) ||
!cc_validate_gen6_depth(dev, info))
return false;
dw1 = 0;
dw2 = 0;
if (stencil->test_enable) {
const struct ilo_state_cc_stencil_op_info *front = &stencil->front;
const struct ilo_state_cc_stencil_params_info *front_p =
&params->stencil_front;
const struct ilo_state_cc_stencil_op_info *back;
const struct ilo_state_cc_stencil_params_info *back_p;
dw1 |= GEN8_ZS_DW1_STENCIL_TEST_ENABLE;
if (stencil->twosided_enable) {
dw1 |= GEN8_ZS_DW1_STENCIL1_ENABLE;
back = &stencil->back;
back_p = &params->stencil_back;
} else {
back = &stencil->front;
back_p = &params->stencil_front;
}
dw1 |= front->fail_op << GEN8_ZS_DW1_STENCIL_FAIL_OP__SHIFT |
front->zfail_op << GEN8_ZS_DW1_STENCIL_ZFAIL_OP__SHIFT |
front->zpass_op << GEN8_ZS_DW1_STENCIL_ZPASS_OP__SHIFT |
back->test_func << GEN8_ZS_DW1_STENCIL1_FUNC__SHIFT |
back->fail_op << GEN8_ZS_DW1_STENCIL1_FAIL_OP__SHIFT |
back->zfail_op << GEN8_ZS_DW1_STENCIL1_ZFAIL_OP__SHIFT |
back->zpass_op << GEN8_ZS_DW1_STENCIL1_ZPASS_OP__SHIFT |
front->test_func << GEN8_ZS_DW1_STENCIL_FUNC__SHIFT;
if (front_p->write_mask || back_p->write_mask)
dw1 |= GEN8_ZS_DW1_STENCIL_WRITE_ENABLE;
dw2 |= front_p->test_mask << GEN8_ZS_DW2_STENCIL_TEST_MASK__SHIFT |
front_p->write_mask << GEN8_ZS_DW2_STENCIL_WRITE_MASK__SHIFT |
back_p->test_mask << GEN8_ZS_DW2_STENCIL1_TEST_MASK__SHIFT |
back_p->write_mask << GEN8_ZS_DW2_STENCIL1_WRITE_MASK__SHIFT;
}
if (depth->test_enable) {
dw1 |= GEN8_ZS_DW1_DEPTH_TEST_ENABLE |
depth->test_func << GEN8_ZS_DW1_DEPTH_FUNC__SHIFT;
} else {
dw1 |= GEN6_COMPAREFUNCTION_ALWAYS << GEN8_ZS_DW1_DEPTH_FUNC__SHIFT;
}
if (depth->write_enable)
dw1 |= GEN8_ZS_DW1_DEPTH_WRITE_ENABLE;
STATIC_ASSERT(ARRAY_SIZE(cc->ds) >= 2);
cc->ds[0] = dw1;
cc->ds[1] = dw2;
return true;
}
static bool
is_dual_source_blend_factor(enum gen_blend_factor factor)
{
switch (factor) {
case GEN6_BLENDFACTOR_SRC1_COLOR:
case GEN6_BLENDFACTOR_SRC1_ALPHA:
case GEN6_BLENDFACTOR_INV_SRC1_COLOR:
case GEN6_BLENDFACTOR_INV_SRC1_ALPHA:
return true;
default:
return false;
}
}
static bool
cc_get_gen6_dual_source_blending(const struct ilo_dev *dev,
const struct ilo_state_cc_info *info)
{
const struct ilo_state_cc_blend_info *blend = &info->blend;
bool dual_source_blending;
uint8_t i;
ILO_DEV_ASSERT(dev, 6, 8);
dual_source_blending = (blend->rt_count &&
(is_dual_source_blend_factor(blend->rt[0].rgb_src) ||
is_dual_source_blend_factor(blend->rt[0].rgb_dst) ||
is_dual_source_blend_factor(blend->rt[0].a_src) ||
is_dual_source_blend_factor(blend->rt[0].a_dst)));
/*
* From the Ivy Bridge PRM, volume 2 part 1, page 356:
*
* "Dual Source Blending: When using "Dual Source" Render Target
* Write messages, the Source1 pixel color+alpha passed in the
* message can be selected as a src/dst blend factor. See Color
* Buffer Blending. In single-source mode, those blend factor
* selections are invalid. If SRC1 is included in a src/dst blend
* factor and a DualSource RT Write message is not utilized,
* results are UNDEFINED. (This reflects the same restriction in DX
* APIs, where undefined results are produced if "o1" is not
* written by a PS - there are no default values defined). If SRC1
* is not included in a src/dst blend factor, dual source blending
* must be disabled."
*
* From the Ivy Bridge PRM, volume 4 part 1, page 356:
*
* "The single source message will not cause a write to the render
* target if Dual Source Blend Enable in 3DSTATE_WM is enabled."
*
* "The dual source message will revert to a single source message
* using source 0 if Dual Source Blend Enable in 3DSTATE_WM is
* disabled."
*
* Dual source blending must be enabled or disabled universally.
*/
for (i = 1; i < blend->rt_count; i++) {
assert(dual_source_blending ==
(is_dual_source_blend_factor(blend->rt[i].rgb_src) ||
is_dual_source_blend_factor(blend->rt[i].rgb_dst) ||
is_dual_source_blend_factor(blend->rt[i].a_src) ||
is_dual_source_blend_factor(blend->rt[i].a_dst)));
}
return dual_source_blending;
}
static bool
cc_validate_gen6_alpha(const struct ilo_dev *dev,
const struct ilo_state_cc_info *info)
{
const struct ilo_state_cc_alpha_info *alpha = &info->alpha;
ILO_DEV_ASSERT(dev, 6, 8);
/*
* From the Sandy Bridge PRM, volume 2 part 1, page 356:
*
* "Alpha values from the pixel shader are treated as FLOAT32 format
* for computing the AlphaToCoverage Mask."
*
* From the Sandy Bridge PRM, volume 2 part 1, page 378:
*
* "If set (AlphaToCoverage Enable), Source0 Alpha is converted to a
* temporary 1/2/4-bit coverage mask and the mask bit corresponding to
* the sample# ANDed with the sample mask bit. If set, sample coverage
* is computed based on src0 alpha value. Value of 0 disables all
* samples and value of 1 enables all samples for that pixel. The same
* coverage needs to apply to all the RTs in MRT case. Further, any
* value of src0 alpha between 0 and 1 monotonically increases the
* number of enabled pixels.
*
* The same coverage needs to be applied to all the RTs in MRT case."
*
* "If set (AlphaToOne Enable), Source0 Alpha is set to 1.0f after
* (possibly) being used to generate the AlphaToCoverage coverage
* mask.
*
* The same coverage needs to be applied to all the RTs in MRT case.
*
* If Dual Source Blending is enabled, this bit must be disabled."
*
* From the Sandy Bridge PRM, volume 2 part 1, page 382:
*
* "Alpha Test can only be enabled if Pixel Shader outputs a float
* alpha value.
*
* Alpha Test is applied independently on each render target by
* comparing that render target's alpha value against the alpha
* reference value. If the alpha test fails, the corresponding pixel
* write will be supressed only for that render target. The
* depth/stencil update will occur if alpha test passes for any render
* target."
*
* From the Sandy Bridge PRM, volume 4 part 1, page 194:
*
* "Multiple render targets are supported with the single source and
* replicate data messages. Each render target is accessed with a
* separate Render Target Write message, each with a different surface
* indicated (different binding table index). The depth buffer is
* written only by the message(s) to the last render target, indicated
* by the Last Render Target Select bit set to clear the pixel
* scoreboard bits."
*
* When AlphaToCoverage/AlphaToOne/AlphaTest is enabled, it is
* required/desirable for the RT write messages to set "Source0 Alpha
* Present to RenderTarget" in the MRT case. It is also required/desirable
* for the alpha values to be FLOAT32.
*/
if (alpha->alpha_to_coverage || alpha->alpha_to_one || alpha->test_enable)
assert(alpha->cv_float_source0_alpha);
/*
* From the Sandy Bridge PRM, volume 2 part 1, page 356:
*
* "[DevSNB]: When NumSamples = 1, AlphaToCoverage and AlphaTo
* Coverage Dither both must be disabled."
*/
if (ilo_dev_gen(dev) == ILO_GEN(6) && alpha->alpha_to_coverage)
assert(alpha->cv_sample_count_one);
/*
* From the Sandy Bridge PRM, volume 2 part 1, page 378:
*
* "If Dual Source Blending is enabled, this bit (AlphaToOne Enable)
* must be disabled."
*/
if (alpha->alpha_to_one)
assert(!cc_get_gen6_dual_source_blending(dev, info));
return true;
}
static bool
cc_validate_gen6_blend(const struct ilo_dev *dev,
const struct ilo_state_cc_info *info)
{
const struct ilo_state_cc_blend_info *blend = &info->blend;
ILO_DEV_ASSERT(dev, 6, 8);
assert(blend->rt_count <= ILO_STATE_CC_BLEND_MAX_RT_COUNT);
return true;
}
static enum gen_blend_factor
get_dst_alpha_one_blend_factor(enum gen_blend_factor factor, bool is_rgb)
{
switch (factor) {
case GEN6_BLENDFACTOR_DST_ALPHA:
return GEN6_BLENDFACTOR_ONE;
case GEN6_BLENDFACTOR_INV_DST_ALPHA:
return GEN6_BLENDFACTOR_ZERO;
case GEN6_BLENDFACTOR_SRC_ALPHA_SATURATE:
return (is_rgb) ? GEN6_BLENDFACTOR_ZERO : GEN6_BLENDFACTOR_ONE;
default:
return factor;
}
}
static void
cc_get_gen6_effective_rt(const struct ilo_dev *dev,
const struct ilo_state_cc_info *info,
uint8_t rt_index,
struct ilo_state_cc_blend_rt_info *dst)
{
const struct ilo_state_cc_blend_rt_info *rt = &info->blend.rt[rt_index];
if (rt->logicop_enable || rt->blend_enable ||
rt->argb_write_disables != 0xf)
assert(rt->cv_has_buffer);
/*
* From the Sandy Bridge PRM, volume 2 part 1, page 365:
*
* "Logic Ops are only supported on *_UNORM surfaces (excluding _SRGB
* variants), otherwise Logic Ops must be DISABLED."
*
* From the Broadwell PRM, volume 7, page 671:
*
* "Logic Ops are supported on all blendable render targets and render
* targets with *INT formats."
*/
if (ilo_dev_gen(dev) < ILO_GEN(8) && rt->logicop_enable)
assert(rt->cv_is_unorm);
/*
* From the Sandy Bridge PRM, volume 2 part 1, page 361:
*
* "Only certain surface formats support Color Buffer Blending. Refer
* to the Surface Format tables in Sampling Engine. Blending must be
* disabled on a RenderTarget if blending is not supported."
*
* From the Sandy Bridge PRM, volume 2 part 1, page 365:
*
* "Color Buffer Blending and Logic Ops must not be enabled
* simultaneously, or behavior is UNDEFINED."
*/
if (rt->blend_enable)
assert(!rt->cv_is_integer && !rt->logicop_enable);
*dst = *rt;
if (rt->blend_enable) {
/* 0x0 is reserved in enum gen_blend_factor */
assert(rt->rgb_src && rt->rgb_dst && rt->a_src && rt->a_dst);
if (rt->force_dst_alpha_one) {
dst->rgb_src = get_dst_alpha_one_blend_factor(rt->rgb_src, true);
dst->rgb_dst = get_dst_alpha_one_blend_factor(rt->rgb_dst, true);
dst->a_src = get_dst_alpha_one_blend_factor(rt->a_src, false);
dst->a_dst = get_dst_alpha_one_blend_factor(rt->a_dst, false);
dst->force_dst_alpha_one = false;
}
} else {
dst->rgb_src = GEN6_BLENDFACTOR_ONE;
dst->rgb_dst = GEN6_BLENDFACTOR_ZERO;
dst->rgb_func = GEN6_BLENDFUNCTION_ADD;
dst->a_src = dst->rgb_src;
dst->a_dst = dst->rgb_dst;
dst->a_func = dst->rgb_func;
}
}
static bool
cc_set_gen6_BLEND_STATE(struct ilo_state_cc *cc,
const struct ilo_dev *dev,
const struct ilo_state_cc_info *info)
{
const struct ilo_state_cc_alpha_info *alpha = &info->alpha;
const struct ilo_state_cc_blend_info *blend = &info->blend;
uint32_t dw_rt[2 * ILO_STATE_CC_BLEND_MAX_RT_COUNT], dw1_invariant;
uint32_t dw0, dw1;
uint8_t i;
ILO_DEV_ASSERT(dev, 6, 7.5);
if (!cc_validate_gen6_alpha(dev, info) ||
!cc_validate_gen6_blend(dev, info))
return false;
/*
* According to the Sandy Bridge PRM, volume 2 part 1, page 360, pre-blend
* and post-blend color clamps must be enabled in most cases. For the
* other cases, they are either desirable or ignored. We can enable them
* unconditionally.
*/
dw1 = GEN6_RT_DW1_COLORCLAMP_RTFORMAT |
GEN6_RT_DW1_PRE_BLEND_CLAMP |
GEN6_RT_DW1_POST_BLEND_CLAMP;
if (alpha->alpha_to_coverage) {
dw1 |= GEN6_RT_DW1_ALPHA_TO_COVERAGE;
/*
* From the Sandy Bridge PRM, volume 2 part 1, page 379:
*
* "[DevSNB]: This bit (AlphaToCoverage Dither Enable) must be
* disabled."
*/
if (ilo_dev_gen(dev) >= ILO_GEN(7))
dw1 |= GEN6_RT_DW1_ALPHA_TO_COVERAGE_DITHER;
}
if (alpha->alpha_to_one)
dw1 |= GEN6_RT_DW1_ALPHA_TO_ONE;
if (alpha->test_enable) {
dw1 |= GEN6_RT_DW1_ALPHA_TEST_ENABLE |
alpha->test_func << GEN6_RT_DW1_ALPHA_TEST_FUNC__SHIFT;
} else {
/*
* From the Ivy Bridge PRM, volume 2 part 1, page 371:
*
* "When Alpha Test is disabled, Alpha Test Function must be
* COMPAREFUNCTION_ALWAYS."
*/
dw1 |= GEN6_COMPAREFUNCTION_ALWAYS <<
GEN6_RT_DW1_ALPHA_TEST_FUNC__SHIFT;
}
if (blend->dither_enable)
dw1 |= GEN6_RT_DW1_DITHER_ENABLE;
dw1_invariant = dw1;
for (i = 0; i < blend->rt_count; i++) {
struct ilo_state_cc_blend_rt_info rt;
cc_get_gen6_effective_rt(dev, info, i, &rt);
/* 0x0 is reserved for blend factors and we have to set them all */
dw0 = rt.a_func << GEN6_RT_DW0_ALPHA_FUNC__SHIFT |
rt.a_src << GEN6_RT_DW0_SRC_ALPHA_FACTOR__SHIFT |
rt.a_dst << GEN6_RT_DW0_DST_ALPHA_FACTOR__SHIFT |
rt.rgb_func << GEN6_RT_DW0_COLOR_FUNC__SHIFT |
rt.rgb_src << GEN6_RT_DW0_SRC_COLOR_FACTOR__SHIFT |
rt.rgb_dst << GEN6_RT_DW0_DST_COLOR_FACTOR__SHIFT;
if (rt.blend_enable) {
dw0 |= GEN6_RT_DW0_BLEND_ENABLE;
if (rt.a_src != rt.rgb_src ||
rt.a_dst != rt.rgb_dst ||
rt.a_func != rt.rgb_func)
dw0 |= GEN6_RT_DW0_INDEPENDENT_ALPHA_ENABLE;
}
dw1 = dw1_invariant |
rt.argb_write_disables << GEN6_RT_DW1_WRITE_DISABLES__SHIFT;
if (rt.logicop_enable) {
dw1 |= GEN6_RT_DW1_LOGICOP_ENABLE |
rt.logicop_func << GEN6_RT_DW1_LOGICOP_FUNC__SHIFT;
}
dw_rt[2 * i + 0] = dw0;
dw_rt[2 * i + 1] = dw1;
}
STATIC_ASSERT(ARRAY_SIZE(cc->blend) >= ARRAY_SIZE(dw_rt));
memcpy(&cc->blend[0], dw_rt, sizeof(uint32_t) * 2 * blend->rt_count);
cc->blend_state_count = info->blend.rt_count;
return true;
}
static bool
cc_set_gen8_BLEND_STATE(struct ilo_state_cc *cc,
const struct ilo_dev *dev,
const struct ilo_state_cc_info *info)
{
const struct ilo_state_cc_alpha_info *alpha = &info->alpha;
const struct ilo_state_cc_blend_info *blend = &info->blend;
uint32_t dw_rt[2 * ILO_STATE_CC_BLEND_MAX_RT_COUNT], dw0, dw1;
bool indep_alpha_enable;
uint8_t i;
ILO_DEV_ASSERT(dev, 8, 8);
if (!cc_validate_gen6_alpha(dev, info) ||
!cc_validate_gen6_blend(dev, info))
return false;
indep_alpha_enable = false;
for (i = 0; i < blend->rt_count; i++) {
struct ilo_state_cc_blend_rt_info rt;
cc_get_gen6_effective_rt(dev, info, i, &rt);
dw0 = rt.rgb_src << GEN8_RT_DW0_SRC_COLOR_FACTOR__SHIFT |
rt.rgb_dst << GEN8_RT_DW0_DST_COLOR_FACTOR__SHIFT |
rt.rgb_func << GEN8_RT_DW0_COLOR_FUNC__SHIFT |
rt.a_src << GEN8_RT_DW0_SRC_ALPHA_FACTOR__SHIFT |
rt.a_dst << GEN8_RT_DW0_DST_ALPHA_FACTOR__SHIFT |
rt.a_func << GEN8_RT_DW0_ALPHA_FUNC__SHIFT |
rt.argb_write_disables << GEN8_RT_DW0_WRITE_DISABLES__SHIFT;
if (rt.blend_enable) {
dw0 |= GEN8_RT_DW0_BLEND_ENABLE;
if (rt.a_src != rt.rgb_src ||
rt.a_dst != rt.rgb_dst ||
rt.a_func != rt.rgb_func)
indep_alpha_enable = true;
}
dw1 = GEN8_RT_DW1_COLORCLAMP_RTFORMAT |
GEN8_RT_DW1_PRE_BLEND_CLAMP |
GEN8_RT_DW1_POST_BLEND_CLAMP;
if (rt.logicop_enable) {
dw1 |= GEN8_RT_DW1_LOGICOP_ENABLE |
rt.logicop_func << GEN8_RT_DW1_LOGICOP_FUNC__SHIFT;
}
dw_rt[2 * i + 0] = dw0;
dw_rt[2 * i + 1] = dw1;
}
dw0 = 0;
if (alpha->alpha_to_coverage) {
dw0 |= GEN8_BLEND_DW0_ALPHA_TO_COVERAGE |
GEN8_BLEND_DW0_ALPHA_TO_COVERAGE_DITHER;
}
if (indep_alpha_enable)
dw0 |= GEN8_BLEND_DW0_INDEPENDENT_ALPHA_ENABLE;
if (alpha->alpha_to_one)
dw0 |= GEN8_BLEND_DW0_ALPHA_TO_ONE;
if (alpha->test_enable) {
dw0 |= GEN8_BLEND_DW0_ALPHA_TEST_ENABLE |
alpha->test_func << GEN8_BLEND_DW0_ALPHA_TEST_FUNC__SHIFT;
} else {
dw0 |= GEN6_COMPAREFUNCTION_ALWAYS <<
GEN8_BLEND_DW0_ALPHA_TEST_FUNC__SHIFT;
}
if (blend->dither_enable)
dw0 |= GEN8_BLEND_DW0_DITHER_ENABLE;
STATIC_ASSERT(ARRAY_SIZE(cc->blend) >= 2 + ARRAY_SIZE(dw_rt));
cc->blend[1] = dw0;
memcpy(&cc->blend[2], dw_rt, sizeof(uint32_t) * 2 * blend->rt_count);
cc->blend_state_count = info->blend.rt_count;
return true;
}
static bool
cc_set_gen8_3DSTATE_PS_BLEND(struct ilo_state_cc *cc,
const struct ilo_dev *dev,
const struct ilo_state_cc_info *info)
{
const struct ilo_state_cc_alpha_info *alpha = &info->alpha;
const struct ilo_state_cc_blend_info *blend = &info->blend;
uint32_t dw1;
ILO_DEV_ASSERT(dev, 8, 8);
dw1 = 0;
if (alpha->alpha_to_coverage)
dw1 |= GEN8_PS_BLEND_DW1_ALPHA_TO_COVERAGE;
if (alpha->test_enable)
dw1 |= GEN8_PS_BLEND_DW1_ALPHA_TEST_ENABLE;
if (blend->rt_count) {
struct ilo_state_cc_blend_rt_info rt0;
uint8_t i;
cc_get_gen6_effective_rt(dev, info, 0, &rt0);
/* 0x0 is reserved for blend factors and we have to set them all */
dw1 |= rt0.a_src << GEN8_PS_BLEND_DW1_SRC_ALPHA_FACTOR__SHIFT |
rt0.a_dst << GEN8_PS_BLEND_DW1_DST_ALPHA_FACTOR__SHIFT |
rt0.rgb_src << GEN8_PS_BLEND_DW1_SRC_COLOR_FACTOR__SHIFT |
rt0.rgb_dst << GEN8_PS_BLEND_DW1_DST_COLOR_FACTOR__SHIFT;
for (i = 0; i < blend->rt_count; i++) {
if (blend->rt[i].argb_write_disables != 0xf) {
dw1 |= GEN8_PS_BLEND_DW1_WRITABLE_RT;
break;
}
}
if (rt0.blend_enable) {
dw1 |= GEN8_PS_BLEND_DW1_BLEND_ENABLE;
if (rt0.a_src != rt0.rgb_src || rt0.a_dst != rt0.rgb_dst)
dw1 |= GEN8_PS_BLEND_DW1_INDEPENDENT_ALPHA_ENABLE;
}
}
STATIC_ASSERT(ARRAY_SIZE(cc->blend) >= 1);
cc->blend[0] = dw1;
return true;
}
static bool
cc_params_set_gen6_COLOR_CALC_STATE(struct ilo_state_cc *cc,
const struct ilo_dev *dev,
const struct ilo_state_cc_params_info *params)
{
uint32_t dw0;
ILO_DEV_ASSERT(dev, 6, 8);
dw0 = params->stencil_front.test_ref << GEN6_CC_DW0_STENCIL_REF__SHIFT |
params->stencil_back.test_ref << GEN6_CC_DW0_STENCIL1_REF__SHIFT |
GEN6_CC_DW0_ALPHATEST_FLOAT32;
STATIC_ASSERT(ARRAY_SIZE(cc->cc) >= 6);
cc->cc[0] = dw0;
cc->cc[1] = fui(params->alpha_ref);
cc->cc[2] = fui(params->blend_rgba[0]);
cc->cc[3] = fui(params->blend_rgba[1]);
cc->cc[4] = fui(params->blend_rgba[2]);
cc->cc[5] = fui(params->blend_rgba[3]);
return true;
}
bool
ilo_state_cc_init(struct ilo_state_cc *cc,
const struct ilo_dev *dev,
const struct ilo_state_cc_info *info)
{
assert(ilo_is_zeroed(cc, sizeof(*cc)));
return ilo_state_cc_set_info(cc, dev, info);
}
bool
ilo_state_cc_set_info(struct ilo_state_cc *cc,
const struct ilo_dev *dev,
const struct ilo_state_cc_info *info)
{
bool ret = true;
if (ilo_dev_gen(dev) >= ILO_GEN(8)) {
ret &= cc_set_gen8_3DSTATE_WM_DEPTH_STENCIL(cc, dev, info);
ret &= cc_set_gen8_BLEND_STATE(cc, dev, info);
ret &= cc_set_gen8_3DSTATE_PS_BLEND(cc, dev, info);
} else {
ret &= cc_set_gen6_DEPTH_STENCIL_STATE(cc, dev, info);
ret &= cc_set_gen6_BLEND_STATE(cc, dev, info);
}
ret &= cc_params_set_gen6_COLOR_CALC_STATE(cc, dev, &info->params);
assert(ret);
return ret;
}
bool
ilo_state_cc_set_params(struct ilo_state_cc *cc,
const struct ilo_dev *dev,
const struct ilo_state_cc_params_info *params)
{
/* modify stencil masks */
if (ilo_dev_gen(dev) >= ILO_GEN(8)) {
uint32_t dw1 = cc->ds[0];
uint32_t dw2 = cc->ds[1];
if (dw1 & GEN8_ZS_DW1_STENCIL_TEST_ENABLE) {
const bool twosided_enable = (dw1 & GEN8_ZS_DW1_STENCIL1_ENABLE);
const struct ilo_state_cc_stencil_params_info *front_p =
&params->stencil_front;
const struct ilo_state_cc_stencil_params_info *back_p =
(twosided_enable) ? &params->stencil_back :
&params->stencil_front;
if (front_p->write_mask || back_p->write_mask)
dw1 |= GEN8_ZS_DW1_STENCIL_WRITE_ENABLE;
else
dw1 &= ~GEN8_ZS_DW1_STENCIL_WRITE_ENABLE;
dw2 =
front_p->test_mask << GEN8_ZS_DW2_STENCIL_TEST_MASK__SHIFT |
front_p->write_mask << GEN8_ZS_DW2_STENCIL_WRITE_MASK__SHIFT |
back_p->test_mask << GEN8_ZS_DW2_STENCIL1_TEST_MASK__SHIFT |
back_p->write_mask << GEN8_ZS_DW2_STENCIL1_WRITE_MASK__SHIFT;
}
cc->ds[0] = dw1;
cc->ds[1] = dw2;
} else {
uint32_t dw0 = cc->ds[0];
uint32_t dw1 = cc->ds[1];
if (dw0 & GEN6_ZS_DW0_STENCIL_TEST_ENABLE) {
const bool twosided_enable = (dw0 & GEN6_ZS_DW0_STENCIL1_ENABLE);
const struct ilo_state_cc_stencil_params_info *front_p =
&params->stencil_front;
const struct ilo_state_cc_stencil_params_info *back_p =
(twosided_enable) ? &params->stencil_back :
&params->stencil_front;
if (front_p->write_mask || back_p->write_mask)
dw0 |= GEN6_ZS_DW0_STENCIL_WRITE_ENABLE;
else
dw0 &= ~GEN6_ZS_DW0_STENCIL_WRITE_ENABLE;
dw1 =
front_p->test_mask << GEN6_ZS_DW1_STENCIL_TEST_MASK__SHIFT |
front_p->write_mask << GEN6_ZS_DW1_STENCIL_WRITE_MASK__SHIFT |
back_p->test_mask << GEN6_ZS_DW1_STENCIL1_TEST_MASK__SHIFT |
back_p->write_mask << GEN6_ZS_DW1_STENCIL1_WRITE_MASK__SHIFT;
}
cc->ds[0] = dw0;
cc->ds[1] = dw1;
}
/* modify COLOR_CALC_STATE */
cc_params_set_gen6_COLOR_CALC_STATE(cc, dev, params);
return true;
}
void
ilo_state_cc_full_delta(const struct ilo_state_cc *cc,
const struct ilo_dev *dev,
struct ilo_state_cc_delta *delta)
{
delta->dirty = ILO_STATE_CC_BLEND_STATE |
ILO_STATE_CC_COLOR_CALC_STATE;
if (ilo_dev_gen(dev) >= ILO_GEN(8)) {
delta->dirty |= ILO_STATE_CC_3DSTATE_WM_DEPTH_STENCIL |
ILO_STATE_CC_3DSTATE_PS_BLEND;
} else {
delta->dirty |= ILO_STATE_CC_DEPTH_STENCIL_STATE;
}
}
void
ilo_state_cc_get_delta(const struct ilo_state_cc *cc,
const struct ilo_dev *dev,
const struct ilo_state_cc *old,
struct ilo_state_cc_delta *delta)
{
delta->dirty = 0;
if (memcmp(cc->ds, old->ds, sizeof(cc->ds))) {
if (ilo_dev_gen(dev) >= ILO_GEN(8))
delta->dirty |= ILO_STATE_CC_3DSTATE_WM_DEPTH_STENCIL;
else
delta->dirty |= ILO_STATE_CC_DEPTH_STENCIL_STATE;
}
if (ilo_dev_gen(dev) >= ILO_GEN(8)) {
if (cc->blend[0] != old->blend[0])
delta->dirty |= ILO_STATE_CC_3DSTATE_PS_BLEND;
if (memcmp(&cc->blend[1], &old->blend[1],
sizeof(uint32_t) * (1 + 2 * cc->blend_state_count)))
delta->dirty |= ILO_STATE_CC_BLEND_STATE;
} else if (memcmp(cc->blend, old->blend,
sizeof(uint32_t) * 2 * cc->blend_state_count)) {
delta->dirty |= ILO_STATE_CC_BLEND_STATE;
}
if (memcmp(cc->cc, old->cc, sizeof(cc->cc)))
delta->dirty |= ILO_STATE_CC_COLOR_CALC_STATE;
}
+199
View File
@@ -0,0 +1,199 @@
/*
* Mesa 3-D graphics library
*
* Copyright (C) 2015 LunarG, 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 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:
* Chia-I Wu <olv@lunarg.com>
*/
#ifndef ILO_STATE_CC_H
#define ILO_STATE_CC_H
#include "genhw/genhw.h"
#include "ilo_core.h"
#include "ilo_dev.h"
/*
* From the Sandy Bridge PRM, volume 2 part 1, page 38:
*
* "Render Target Index. Specifies the render target index that will be
* used to select blend state from BLEND_STATE.
* Format = U3"
*/
#define ILO_STATE_CC_BLEND_MAX_RT_COUNT 8
enum ilo_state_cc_dirty_bits {
ILO_STATE_CC_3DSTATE_WM_DEPTH_STENCIL = (1 << 0),
ILO_STATE_CC_3DSTATE_PS_BLEND = (1 << 1),
ILO_STATE_CC_DEPTH_STENCIL_STATE = (1 << 2),
ILO_STATE_CC_BLEND_STATE = (1 << 3),
ILO_STATE_CC_COLOR_CALC_STATE = (1 << 4),
};
/**
* AlphaCoverage and AlphaTest.
*/
struct ilo_state_cc_alpha_info {
bool cv_sample_count_one;
bool cv_float_source0_alpha;
bool alpha_to_coverage;
bool alpha_to_one;
bool test_enable;
enum gen_compare_function test_func;
};
struct ilo_state_cc_stencil_op_info {
enum gen_compare_function test_func;
enum gen_stencil_op fail_op;
enum gen_stencil_op zfail_op;
enum gen_stencil_op zpass_op;
};
/**
* StencilTest.
*/
struct ilo_state_cc_stencil_info {
bool cv_has_buffer;
bool test_enable;
bool twosided_enable;
struct ilo_state_cc_stencil_op_info front;
struct ilo_state_cc_stencil_op_info back;
};
/**
* DepthTest.
*/
struct ilo_state_cc_depth_info {
bool cv_has_buffer;
bool test_enable;
/* independent from test_enable */
bool write_enable;
enum gen_compare_function test_func;
};
struct ilo_state_cc_blend_rt_info {
bool cv_has_buffer;
bool cv_is_unorm;
bool cv_is_integer;
uint8_t argb_write_disables;
bool logicop_enable;
enum gen_logic_op logicop_func;
bool blend_enable;
bool force_dst_alpha_one;
enum gen_blend_factor rgb_src;
enum gen_blend_factor rgb_dst;
enum gen_blend_function rgb_func;
enum gen_blend_factor a_src;
enum gen_blend_factor a_dst;
enum gen_blend_function a_func;
};
/**
* ColorBufferBlending, Dithering, and LogicOps.
*/
struct ilo_state_cc_blend_info {
const struct ilo_state_cc_blend_rt_info *rt;
uint8_t rt_count;
bool dither_enable;
};
struct ilo_state_cc_stencil_params_info {
uint8_t test_ref;
uint8_t test_mask;
uint8_t write_mask;
};
/**
* CC parameters.
*/
struct ilo_state_cc_params_info {
float alpha_ref;
struct ilo_state_cc_stencil_params_info stencil_front;
struct ilo_state_cc_stencil_params_info stencil_back;
float blend_rgba[4];
};
/**
* Pixel processing.
*/
struct ilo_state_cc_info {
struct ilo_state_cc_alpha_info alpha;
struct ilo_state_cc_stencil_info stencil;
struct ilo_state_cc_depth_info depth;
struct ilo_state_cc_blend_info blend;
struct ilo_state_cc_params_info params;
};
struct ilo_state_cc {
uint32_t ds[3];
uint8_t blend_state_count;
uint32_t blend[1 + 1 + 2 * ILO_STATE_CC_BLEND_MAX_RT_COUNT];
uint32_t cc[6];
};
struct ilo_state_cc_delta {
uint32_t dirty;
};
bool
ilo_state_cc_init(struct ilo_state_cc *cc,
const struct ilo_dev *dev,
const struct ilo_state_cc_info *info);
bool
ilo_state_cc_set_info(struct ilo_state_cc *cc,
const struct ilo_dev *dev,
const struct ilo_state_cc_info *info);
bool
ilo_state_cc_set_params(struct ilo_state_cc *cc,
const struct ilo_dev *dev,
const struct ilo_state_cc_params_info *params);
void
ilo_state_cc_full_delta(const struct ilo_state_cc *cc,
const struct ilo_dev *dev,
struct ilo_state_cc_delta *delta);
void
ilo_state_cc_get_delta(const struct ilo_state_cc *cc,
const struct ilo_dev *dev,
const struct ilo_state_cc *old,
struct ilo_state_cc_delta *delta);
#endif /* ILO_STATE_CC_H */