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swr: Enable MSAA in OpenSWR software renderer

Browse source 
This patch enables multisample antialiasing in the OpenSWR software renderer.

MSAA is a proof-of-concept/work-in-progress with bug fixes and performance
on the way.  We wanted to get the changes out now to allow several customers
to begin experimenting with MSAA in a software renderer.  So as not to
impact current customers, MSAA is turned off by default - previous
functionality and performance remain intact.  It is easily enabled via
environment variables, as described below.

It has only been tested with the glx-lib winsys.  The intention is to
enable other state-trackers, both Windows and Linux and more fully support
FBOs.

There are 2 environment variables that affect behavior:

* SWR_MSAA_FORCE_ENABLE - force MSAA on, for apps that are not designed
  for MSAA... Beware, results will vary.  This is mainly for testing.

* SWR_MSAA_MAX_SAMPLE_COUNT - sets maximum supported number of
  samples (1,2,4,8,16), or 0 to disable MSAA altogether.
  (The default is currently 0.)

Reviewed-by: George Kyriazis <george.kyriazis@intel.com>
This commit is contained in:
Bruce Cherniak 2017-04-13 17:40:11 -05:00 • committed by Tim Rowley
parent 91a7f0b3af
commit 1832ef6cd9
6 changed files with 313 additions and 25 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

90
src/gallium/drivers/swr/swr_context.cpp
View file

@ -267,20 +267,104 @@ swr_resource_copy(struct pipe_context *pipe,
}
/* XXX: This resolve is incomplete and suboptimal. It will be removed once the
* pipelined resolve blit works. */
void
swr_do_msaa_resolve(struct pipe_resource *src_resource,
struct pipe_resource *dst_resource)
{
/* This is a pretty dumb inline resolve. It only supports 8-bit formats
* (ex RGBA8/BGRA8) - which are most common display formats anyway.
*/
/* quick check for 8-bit and number of components */
uint8_t bits_per_component =
util_format_get_component_bits(src_resource->format,
UTIL_FORMAT_COLORSPACE_RGB, 0);
/* Unsupported resolve format */
assert(src_resource->format == dst_resource->format);
assert(bits_per_component == 8);
if ((src_resource->format != dst_resource->format) ||
(bits_per_component != 8)) {
return;
}
uint8_t src_num_comps = util_format_get_nr_components(src_resource->format);
SWR_SURFACE_STATE *src_surface = &swr_resource(src_resource)->swr;
SWR_SURFACE_STATE *dst_surface = &swr_resource(dst_resource)->swr;
uint32_t *src, *dst, offset;
uint32_t num_samples = src_surface->numSamples;
float recip_num_samples = 1.0f / num_samples;
for (uint32_t y = 0; y < src_surface->height; y++) {
for (uint32_t x = 0; x < src_surface->width; x++) {
float r = 0.0f;
float g = 0.0f;
float b = 0.0f;
float a = 0.0f;
for (uint32_t sampleNum = 0; sampleNum < num_samples; sampleNum++) {
offset = ComputeSurfaceOffset<false>(x, y, 0, 0, sampleNum, 0, src_surface);
src = (uint32_t *) src_surface->pBaseAddress + offset/src_num_comps;
const uint32_t sample = *src;
r += (float)((sample >> 24) & 0xff) / 255.0f * recip_num_samples;
g += (float)((sample >> 16) & 0xff) / 255.0f * recip_num_samples;
b += (float)((sample >> 8) & 0xff) / 255.0f * recip_num_samples;
a += (float)((sample ) & 0xff) / 255.0f * recip_num_samples;
}
uint32_t result = 0;
result = ((uint8_t)(r * 255.0f) & 0xff) << 24;
result |= ((uint8_t)(g * 255.0f) & 0xff) << 16;
result |= ((uint8_t)(b * 255.0f) & 0xff) << 8;
result |= ((uint8_t)(a * 255.0f) & 0xff);
offset = ComputeSurfaceOffset<false>(x, y, 0, 0, 0, 0, src_surface);
dst = (uint32_t *) dst_surface->pBaseAddress + offset/src_num_comps;
*dst = result;
}
}
}
static void
swr_blit(struct pipe_context *pipe, const struct pipe_blit_info *blit_info)
{
struct swr_context *ctx = swr_context(pipe);
/* Make a copy of the const blit_info, so we can modify it */
struct pipe_blit_info info = *blit_info;
if (blit_info->render_condition_enable && !swr_check_render_cond(pipe))
if (info.render_condition_enable && !swr_check_render_cond(pipe))
return;
if (info.src.resource->nr_samples > 1 && info.dst.resource->nr_samples <= 1
&& !util_format_is_depth_or_stencil(info.src.resource->format)
&& !util_format_is_pure_integer(info.src.resource->format)) {
debug_printf("swr: color resolve unimplemented\n");
return;
debug_printf("swr_blit: color resolve : %d -> %d\n",
info.src.resource->nr_samples, info.dst.resource->nr_samples);
/* Because the resolve is being done inline (not pipelined),
* resources need to be stored out of hottiles and the pipeline empty.
*
* Resources are marked unused following fence finish because all
* pipeline operations are complete. Validation of the blit will mark
* them are read/write again.
*/
swr_store_dirty_resource(pipe, info.src.resource, SWR_TILE_RESOLVED);
swr_store_dirty_resource(pipe, info.dst.resource, SWR_TILE_RESOLVED);
swr_fence_finish(pipe->screen, NULL, swr_screen(pipe->screen)->flush_fence, 0);
swr_resource_unused(info.src.resource);
swr_resource_unused(info.dst.resource);
struct pipe_resource *src_resource = info.src.resource;
struct pipe_resource *resolve_target =
swr_resource(src_resource)->resolve_target;
/* Inline resolve samples into resolve target resource, then continue
* the blit. */
swr_do_msaa_resolve(src_resource, resolve_target);
/* The resolve target becomes the new source for the blit. */
info.src.resource = resolve_target;
}
if (util_try_blit_via_copy_region(pipe, &info)) {

3
src/gallium/drivers/swr/swr_context.h
View file

@ -196,4 +196,7 @@ void swr_clear_init(struct pipe_context *pipe);
void swr_draw_init(struct pipe_context *pipe);
void swr_finish(struct pipe_context *pipe);
void swr_do_msaa_resolve(struct pipe_resource *src_resource,
struct pipe_resource *dst_resource);
#endif

4
src/gallium/drivers/swr/swr_resource.h
View file

@ -46,6 +46,10 @@ struct swr_resource {
struct sw_displaytarget *display_target;
/* If resource is multisample, then this points to a alternate resource
* containing the resolved multisample surface, otherwise null */
struct pipe_resource *resolve_target;
size_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS];
size_t secondary_mip_offsets[PIPE_MAX_TEXTURE_LEVELS];

159
src/gallium/drivers/swr/swr_screen.cpp
View file

@ -61,6 +61,11 @@
#define SWR_MAX_TEXTURE_CUBE_LEVELS 14 /* 8K x 8K for now */
#define SWR_MAX_TEXTURE_ARRAY_LAYERS 512 /* 8K x 512 / 8K x 8K x 512 */
/* Flag indicates creation of alternate surface, to prevent recursive loop
* in resource creation when msaa_force_enable is set. */
#define SWR_RESOURCE_FLAG_ALT_SURFACE (PIPE_RESOURCE_FLAG_DRV_PRIV << 0)
static const char *
swr_get_name(struct pipe_screen *screen)
{
@ -78,13 +83,14 @@ swr_get_vendor(struct pipe_screen *screen)
}
static boolean
swr_is_format_supported(struct pipe_screen *screen,
swr_is_format_supported(struct pipe_screen *_screen,
enum pipe_format format,
enum pipe_texture_target target,
unsigned sample_count,
unsigned bind)
{
struct sw_winsys *winsys = swr_screen(screen)->winsys;
struct swr_screen *screen = swr_screen(_screen);
struct sw_winsys *winsys = screen->winsys;
const struct util_format_description *format_desc;
assert(target == PIPE_BUFFER || target == PIPE_TEXTURE_1D
@ -100,7 +106,8 @@ swr_is_format_supported(struct pipe_screen *screen,
if (!format_desc)
return FALSE;
if (sample_count > 1)
if ((sample_count > screen->msaa_max_count)
|| !util_is_power_of_two(sample_count))
return FALSE;
if (bind & PIPE_BIND_DISPLAY_TARGET) {
@ -235,7 +242,6 @@ swr_get_param(struct pipe_screen *screen, enum pipe_cap param)
case PIPE_CAP_QUERY_TIMESTAMP:
case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
case PIPE_CAP_FAKE_SW_MSAA:
case PIPE_CAP_DRAW_INDIRECT:
case PIPE_CAP_UMA:
case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
@ -250,6 +256,15 @@ swr_get_param(struct pipe_screen *screen, enum pipe_cap param)
case PIPE_CAP_DOUBLES:
return 1;
/* MSAA support
* If user has explicitly set max_sample_count = 0 (via SWR_MSAA_MAX_COUNT)
* then disable all MSAA support and go back to old caps. */
case PIPE_CAP_TEXTURE_MULTISAMPLE:
case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
return swr_screen(screen)->msaa_max_count ? 1 : 0;
case PIPE_CAP_FAKE_SW_MSAA:
return swr_screen(screen)->msaa_max_count ? 0 : 1;
/* unsupported features */
case PIPE_CAP_ANISOTROPIC_FILTER:
case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
@ -264,7 +279,6 @@ swr_get_param(struct pipe_screen *screen, enum pipe_cap param)
case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
case PIPE_CAP_TEXTURE_MULTISAMPLE:
case PIPE_CAP_TGSI_TEXCOORD:
case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
@ -276,7 +290,6 @@ swr_get_param(struct pipe_screen *screen, enum pipe_cap param)
case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
case PIPE_CAP_SAMPLER_VIEW_TARGET:
case PIPE_CAP_VERTEXID_NOBASE:
case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
@ -712,6 +725,14 @@ swr_texture_layout(struct swr_screen *screen,
if (pt->bind & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL)) {
res->swr.halign = KNOB_MACROTILE_X_DIM;
res->swr.valign = KNOB_MACROTILE_Y_DIM;
/* If SWR_MSAA_FORCE_ENABLE is set, turn on MSAA and override requested
* surface sample count. */
if (screen->msaa_force_enable) {
res->swr.numSamples = screen->msaa_max_count;
fprintf(stderr,"swr_texture_layout: forcing sample count: %d\n",
res->swr.numSamples);
}
} else {
res->swr.halign = 1;
res->swr.valign = 1;
@ -790,8 +811,8 @@ swr_texture_layout(struct swr_screen *screen,
ComputeSurfaceOffset<false>(0, 0, 0, 0, 0, level, &res->swr);
}
size_t total_size =
(size_t)res->swr.depth * res->swr.qpitch * res->swr.pitch;
size_t total_size = res->swr.depth * res->swr.qpitch * res->swr.pitch *
res->swr.numSamples;
if (total_size > SWR_MAX_TEXTURE_SIZE)
return false;
@ -808,9 +829,11 @@ swr_texture_layout(struct swr_screen *screen,
ComputeSurfaceOffset<false>(0, 0, 0, 0, 0, level, &res->secondary);
}
res->secondary.pBaseAddress = (uint8_t *)AlignedMalloc(
res->secondary.depth * res->secondary.qpitch *
res->secondary.pitch, 64);
total_size = res->secondary.depth * res->secondary.qpitch *
res->secondary.pitch * res->secondary.numSamples;
res->secondary.pBaseAddress = (uint8_t *) AlignedMalloc(total_size,
64);
}
}
@ -827,6 +850,51 @@ swr_can_create_resource(struct pipe_screen *screen,
return swr_texture_layout(swr_screen(screen), &res, false);
}
/* Helper function that conditionally creates a single-sample resolve resource
* and attaches it to main multisample resource. */
static boolean
swr_create_resolve_resource(struct pipe_screen *_screen,
struct swr_resource *msaa_res)
{
struct swr_screen *screen = swr_screen(_screen);
/* If resource is multisample, create a single-sample resolve resource */
if (msaa_res->base.nr_samples > 1 || (screen->msaa_force_enable &&
!(msaa_res->base.flags & SWR_RESOURCE_FLAG_ALT_SURFACE))) {
/* Create a single-sample copy of the resource. Copy the original
* resource parameters and set flag to prevent recursion when re-calling
* resource_create */
struct pipe_resource alt_template = msaa_res->base;
alt_template.nr_samples = 0;
alt_template.flags |= SWR_RESOURCE_FLAG_ALT_SURFACE;
/* Note: Display_target is a special single-sample resource, only the
* display_target has been created already. */
if (msaa_res->base.bind & (PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT
| PIPE_BIND_SHARED)) {
/* Allocate the multisample buffers. */
if (!swr_texture_layout(screen, msaa_res, true))
return false;
/* Alt resource will only be bound as PIPE_BIND_RENDER_TARGET
* remove the DISPLAY_TARGET, SCANOUT, and SHARED bindings */
alt_template.bind = PIPE_BIND_RENDER_TARGET;
}
/* Allocate single-sample resolve surface */
struct pipe_resource *alt;
alt = _screen->resource_create(_screen, &alt_template);
if (!alt)
return false;
/* Attach it to the multisample resource */
msaa_res->resolve_target = alt;
}
return true; /* success */
}
static struct pipe_resource *
swr_resource_create(struct pipe_screen *_screen,
const struct pipe_resource *templat)
@ -845,7 +913,7 @@ swr_resource_create(struct pipe_screen *_screen,
| PIPE_BIND_SHARED)) {
/* displayable surface
* first call swr_texture_layout without allocating to finish
* filling out the SWR_SURFAE_STATE in res */
* filling out the SWR_SURFACE_STATE in res */
swr_texture_layout(screen, res, false);
if (!swr_displaytarget_layout(screen, res))
goto fail;
@ -854,6 +922,12 @@ swr_resource_create(struct pipe_screen *_screen,
if (!swr_texture_layout(screen, res, true))
goto fail;
}
/* If resource was multisample, create resolve resource and attach
* it to multisample resource. */
if (!swr_create_resolve_resource(_screen, res))
goto fail;
} else {
/* other data (vertex buffer, const buffer, etc) */
assert(util_format_get_blocksize(templat->format) == 1);
@ -862,7 +936,7 @@ swr_resource_create(struct pipe_screen *_screen,
assert(templat->last_level == 0);
/* Easiest to just call swr_texture_layout, as it sets up
* SWR_SURFAE_STATE in res */
* SWR_SURFACE_STATE in res */
if (!swr_texture_layout(screen, res, true))
goto fail;
}
@ -888,9 +962,24 @@ swr_resource_destroy(struct pipe_screen *p_screen, struct pipe_resource *pt)
struct sw_winsys *winsys = screen->winsys;
winsys->displaytarget_destroy(winsys, spr->display_target);
if (spr->swr.numSamples > 1) {
/* Free an attached resolve resource */
struct swr_resource *alt = swr_resource(spr->resolve_target);
swr_fence_work_free(screen->flush_fence, alt->swr.pBaseAddress, true);
/* Free multisample buffer */
swr_fence_work_free(screen->flush_fence, spr->swr.pBaseAddress, true);
}
} else {
/* For regular resources, defer deletion */
swr_resource_unused(pt);
if (spr->swr.numSamples > 1) {
/* Free an attached resolve resource */
struct swr_resource *alt = swr_resource(spr->resolve_target);
swr_fence_work_free(screen->flush_fence, alt->swr.pBaseAddress, true);
}
swr_fence_work_free(screen->flush_fence, spr->swr.pBaseAddress, true);
swr_fence_work_free(screen->flush_fence,
spr->secondary.pBaseAddress, true);
@ -919,6 +1008,23 @@ swr_flush_frontbuffer(struct pipe_screen *p_screen,
SwrEndFrame(swr_context(pipe)->swrContext);
}
/* Multisample surfaces need to be resolved before present */
if (pipe && spr->swr.numSamples > 1) {
struct pipe_resource *resolve_target = spr->resolve_target;
/* Do an inline surface resolve into the resolve target resource
* XXX: This works, just not optimal. Work on using a pipelined blit. */
swr_do_msaa_resolve(resource, resolve_target);
/* Once resolved, copy into display target */
SWR_SURFACE_STATE *resolve = &swr_resource(resolve_target)->swr;
void *map = winsys->displaytarget_map(winsys, spr->display_target,
PIPE_TRANSFER_WRITE);
memcpy(map, resolve->pBaseAddress, resolve->pitch * resolve->height);
winsys->displaytarget_unmap(winsys, spr->display_target);
}
debug_assert(spr->display_target);
if (spr->display_target)
winsys->displaytarget_display(
@ -986,6 +1092,33 @@ swr_create_screen_internal(struct sw_winsys *winsys)
util_format_s3tc_init();
/* XXX msaa under development, disable by default for now */
screen->msaa_max_count = 0; /* was SWR_MAX_NUM_MULTISAMPLES; */
/* validate env override values, within range and power of 2 */
int msaa_max_count = debug_get_num_option("SWR_MSAA_MAX_COUNT", 0);
if (msaa_max_count) {
if ((msaa_max_count < 0) || (msaa_max_count > SWR_MAX_NUM_MULTISAMPLES)
|| !util_is_power_of_two(msaa_max_count)) {
fprintf(stderr, "SWR_MSAA_MAX_COUNT invalid: %d\n", msaa_max_count);
fprintf(stderr, "must be power of 2 between 1 and %d" \
" (or 0 to disable msaa)\n",
SWR_MAX_NUM_MULTISAMPLES);
msaa_max_count = 0;
}
fprintf(stderr, "SWR_MSAA_MAX_COUNT: %d\n", msaa_max_count);
if (!msaa_max_count)
fprintf(stderr, "(msaa disabled)\n");
screen->msaa_max_count = msaa_max_count;
}
screen->msaa_force_enable = debug_get_bool_option(
"SWR_MSAA_FORCE_ENABLE", false);
if (screen->msaa_force_enable)
fprintf(stderr, "SWR_MSAA_FORCE_ENABLE: true\n");
return &screen->base;
}

8
src/gallium/drivers/swr/swr_screen.h
View file

@ -24,10 +24,15 @@
#ifndef SWR_SCREEN_H
#define SWR_SCREEN_H
#include "swr_resource.h"
#include "pipe/p_screen.h"
#include "pipe/p_defines.h"
#include "util/u_format.h"
#include "api.h"
#include "memory/TilingFunctions.h"
struct sw_winsys;
struct swr_screen {
@ -38,6 +43,9 @@ struct swr_screen {
struct sw_winsys *winsys;
boolean msaa_force_enable;
uint8_t msaa_max_count;
HANDLE hJitMgr;
};

74
src/gallium/drivers/swr/swr_state.cpp
View file

@ -30,6 +30,7 @@
#include "common/os.h"
#include "jit_api.h"
#include "gen_state_llvm.h"
#include "core/multisample.h"
#include "gallivm/lp_bld_tgsi.h"
#include "util/u_format.h"
@ -668,6 +669,9 @@ swr_set_framebuffer_state(struct pipe_context *pipe,
if (changed) {
util_copy_framebuffer_state(&ctx->framebuffer, fb);
/* 0 and 1 both indicate no msaa. Core doesn't understand 0 samples */
ctx->framebuffer.samples = std::max((ubyte)1, ctx->framebuffer.samples);
ctx->dirty |= SWR_NEW_FRAMEBUFFER;
}
}
@ -684,6 +688,36 @@ swr_set_sample_mask(struct pipe_context *pipe, unsigned sample_mask)
}
}
/*
* MSAA fixed sample position table
* used by update_derived and get_sample_position
* (integer locations on a 16x16 grid)
*/
static const uint8_t swr_sample_positions[][2] =
{ /* 1x*/ { 8, 8},
/* 2x*/ {12,12},{ 4, 4},
/* 4x*/ { 6, 2},{14, 6},{ 2,10},{10,14},
/* 8x*/ { 9, 5},{ 7,11},{13, 9},{ 5, 3},
{ 3,13},{ 1, 7},{11,15},{15, 1},
/*16x*/ { 9, 9},{ 7, 5},{ 5,10},{12, 7},
{ 3, 6},{10,13},{13,11},{11, 3},
{ 6,14},{ 8, 1},{ 4, 2},{ 2,12},
{ 0, 8},{15, 4},{14,15},{ 1, 0} };
static void
swr_get_sample_position(struct pipe_context *pipe,
unsigned sample_count, unsigned sample_index,
float *out_value)
{
/* validate sample_count */
sample_count = GetNumSamples(GetSampleCount(sample_count));
const uint8_t *sample = swr_sample_positions[sample_count-1 + sample_index];
out_value[0] = sample[0] / 16.0f;
out_value[1] = sample[1] / 16.0f;
}
/*
* Update resource in-use status
* All resources bound to color or depth targets marked as WRITE resources.
@ -1060,9 +1094,30 @@ swr_update_derived(struct pipe_context *pipe,
rastState->pointSpriteTopOrigin =
rasterizer->sprite_coord_mode == PIPE_SPRITE_COORD_UPPER_LEFT;
/* XXX TODO: Add multisample */
rastState->sampleCount = SWR_MULTISAMPLE_1X;
/* If SWR_MSAA_FORCE_ENABLE is set, turn msaa on */
if (screen->msaa_force_enable && !rasterizer->multisample) {
/* Force enable and use the value the surface was created with */
rasterizer->multisample = true;
fb->samples = swr_resource(fb->cbufs[0]->texture)->swr.numSamples;
fprintf(stderr,"msaa force enable: %d samples\n", fb->samples);
}
rastState->sampleCount = GetSampleCount(fb->samples);
rastState->forcedSampleCount = false;
rastState->bIsCenterPattern = !rasterizer->multisample;
rastState->pixelLocation = SWR_PIXEL_LOCATION_CENTER;
/* Only initialize sample positions if msaa is enabled */
if (rasterizer->multisample) {
for (uint32_t i = 0; i < fb->samples; i++) {
const uint8_t *sample = swr_sample_positions[fb->samples-1 + i];
rastState->samplePositions.SetXi(i, sample[0] << 4);
rastState->samplePositions.SetYi(i, sample[1] << 4);
rastState->samplePositions.SetX (i, sample[0] / 16.0f);
rastState->samplePositions.SetY (i, sample[1] / 16.0f);
}
rastState->samplePositions.PrecalcSampleData(fb->samples);
}
bool do_offset = false;
switch (rasterizer->fill_front) {
@ -1375,9 +1430,9 @@ swr_update_derived(struct pipe_context *pipe,
psState.inputCoverage = SWR_INPUT_COVERAGE_NORMAL;
psState.writesODepth = ctx->fs->info.base.writes_z;
psState.usesSourceDepth = ctx->fs->info.base.reads_z;
psState.shadingRate = SWR_SHADING_RATE_PIXEL; // XXX
psState.shadingRate = SWR_SHADING_RATE_PIXEL;
psState.numRenderTargets = ctx->framebuffer.nr_cbufs;
psState.posOffset = SWR_PS_POSITION_SAMPLE_NONE; // XXX msaa
psState.posOffset = SWR_PS_POSITION_SAMPLE_NONE;
uint32_t barycentricsMask = 0;
#if 0
// when we switch to mesa-master
@ -1507,6 +1562,7 @@ swr_update_derived(struct pipe_context *pipe,
/* Blend State */
if (ctx->dirty & (SWR_NEW_BLEND |
SWR_NEW_RASTERIZER |
SWR_NEW_FRAMEBUFFER |
SWR_NEW_DEPTH_STENCIL_ALPHA)) {
struct pipe_framebuffer_state *fb = &ctx->framebuffer;
@ -1520,9 +1576,8 @@ swr_update_derived(struct pipe_context *pipe,
blendState.alphaTestReference =
*((uint32_t*)&ctx->depth_stencil->alpha.ref_value);
// XXX MSAA
blendState.sampleMask = 0;
blendState.sampleCount = SWR_MULTISAMPLE_1X;
blendState.sampleMask = ctx->sample_mask;
blendState.sampleCount = GetSampleCount(fb->samples);
/* If there are no color buffers bound, disable writes on RT0
* and skip loop */
@ -1578,8 +1633,8 @@ swr_update_derived(struct pipe_context *pipe,
compileState.blendState.alphaBlendFunc);
compileState.desc.alphaToCoverageEnable =
ctx->blend->pipe.alpha_to_coverage;
compileState.desc.sampleMaskEnable = 0; // XXX
compileState.desc.numSamples = 1; // XXX
compileState.desc.sampleMaskEnable = (blendState.sampleMask != 0);
compileState.desc.numSamples = fb->samples;
compileState.alphaTestFunction =
swr_convert_depth_func(ctx->depth_stencil->alpha.func);
@ -1781,6 +1836,7 @@ swr_state_init(struct pipe_context *pipe)
pipe->set_stencil_ref = swr_set_stencil_ref;
pipe->set_sample_mask = swr_set_sample_mask;
pipe->get_sample_position = swr_get_sample_position;
pipe->create_stream_output_target = swr_create_so_target;
pipe->stream_output_target_destroy = swr_destroy_so_target;