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swr: move msaa resolve to generalized StoreTile

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v3: list piglit tests fixed by this patch. Fixed typo Tim pointed out.
v2: Reword commit message to more closely adhere to community
guidelines.

This patch moves msaa resolve down into core/StoreTiles where the
surface format conversion routines are available.  The previous
"experimental" resolve was limited to 8-bit unsigned render targets.

This fixes a number of piglit msaa tests by adding resolve support for
all the render target formats we support.

Specifically:
layered-rendering/gl-layer-render: fail->pass
layered-rendering/gl-layer-render-storage: fail->pass
multisample-formats *[2,4,8,16] gl_arb_texture_rg: crash->pass
multisample-formats *[2,4,8,16] gl_ext_texture_snorm: crash->pass
multisample-formats *[2,4,8,16] gl_arb_texture_float: fail->pass
multisample-formats *[2,4,8,16] gl_arb_texture_rg-float: fail->pass

MSAA is still disabled by default, but can be enabled with
"export SWR_MSAA_MAX_COUNT=4" (1,2,4,8,16 are options)
The default is 0, which is disabled.

This patch improves the number of multisample-formats supported by swr,
and fixes several crashes currently in the 17.1 branch.  Therefore, it
should be considered for inclusion in the 17.1 stable release.  Being
disabled by default, it poses no risk to most users of swr.

Reviewed-by: Tim Rowley <timothy.o.rowley@intel.com>
cc: mesa-stable@lists.freedesktop.org
This commit is contained in:
Bruce Cherniak
2017-05-04 19:33:36 -05:00
committed by Tim Rowley
parent 0ffa06a19b
commit f52e63069a
3 changed files with 82 additions and 80 deletions
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75
src/gallium/drivers/swr/rasterizer/memory/StoreTile.h
View File

@@ -1133,6 +1133,64 @@ struct StoreRasterTile
}
}
}
//////////////////////////////////////////////////////////////////////////
/// @brief Resolves an 8x8 raster tile to the resolve destination surface.
/// @param pSrc - Pointer to raster tile.
/// @param pDstSurface - Destination surface state
/// @param x, y - Coordinates to raster tile.
/// @param sampleOffset - Offset between adjacent multisamples
INLINE static void Resolve(
uint8_t *pSrc,
SWR_SURFACE_STATE* pDstSurface,
uint32_t x, uint32_t y, uint32_t sampleOffset, uint32_t renderTargetArrayIndex) // (x, y) pixel coordinate to start of raster tile.
{
uint32_t lodWidth = std::max(pDstSurface->width >> pDstSurface->lod, 1U);
uint32_t lodHeight = std::max(pDstSurface->height >> pDstSurface->lod, 1U);
float oneOverNumSamples = 1.0f / pDstSurface->numSamples;
// For each raster tile pixel (rx, ry)
for (uint32_t ry = 0; ry < KNOB_TILE_Y_DIM; ++ry)
{
for (uint32_t rx = 0; rx < KNOB_TILE_X_DIM; ++rx)
{
// Perform bounds checking.
if (((x + rx) < lodWidth) &&
((y + ry) < lodHeight))
{
// Sum across samples
float resolveColor[4] = {0};
for (uint32_t sampleNum = 0; sampleNum < pDstSurface->numSamples; sampleNum++)
{
float sampleColor[4] = {0};
uint8_t *pSampleSrc = pSrc + sampleOffset * sampleNum;
GetSwizzledSrcColor(pSampleSrc, rx, ry, sampleColor);
resolveColor[0] += sampleColor[0];
resolveColor[1] += sampleColor[1];
resolveColor[2] += sampleColor[2];
resolveColor[3] += sampleColor[3];
}
// Divide by numSamples to average
resolveColor[0] *= oneOverNumSamples;
resolveColor[1] *= oneOverNumSamples;
resolveColor[2] *= oneOverNumSamples;
resolveColor[3] *= oneOverNumSamples;
// Use the resolve surface state
SWR_SURFACE_STATE* pResolveSurface = (SWR_SURFACE_STATE*)pDstSurface->pAuxBaseAddress;
uint8_t *pDst = (uint8_t*)ComputeSurfaceAddress<false, false>((x + rx), (y + ry),
pResolveSurface->arrayIndex + renderTargetArrayIndex, pResolveSurface->arrayIndex + renderTargetArrayIndex,
0, pResolveSurface->lod, pResolveSurface);
{
ConvertPixelFromFloat<DstFormat>(pDst, resolveColor);
}
}
}
}
}
};
template<typename TTraits, SWR_FORMAT SrcFormat, SWR_FORMAT DstFormat>
@@ -2316,6 +2374,9 @@ struct StoreMacroTile
pfnStore[sampleNum] = (bForceGeneric || KNOB_USE_GENERIC_STORETILE) ? StoreRasterTile<TTraits, SrcFormat, DstFormat>::Store : OptStoreRasterTile<TTraits, SrcFormat, DstFormat>::Store;
}
// Save original for pSrcHotTile resolve.
uint8_t *pResolveSrcHotTile = pSrcHotTile;
// Store each raster tile from the hot tile to the destination surface.
for(uint32_t row = 0; row < KNOB_MACROTILE_Y_DIM; row += KNOB_TILE_Y_DIM)
{
@@ -2328,6 +2389,20 @@ struct StoreMacroTile
}
}
}
if (pDstSurface->pAuxBaseAddress)
{
uint32_t sampleOffset = KNOB_TILE_X_DIM * KNOB_TILE_Y_DIM * (FormatTraits<SrcFormat>::bpp / 8);
// Store each raster tile from the hot tile to the destination surface.
for(uint32_t row = 0; row < KNOB_MACROTILE_Y_DIM; row += KNOB_TILE_Y_DIM)
{
for(uint32_t col = 0; col < KNOB_MACROTILE_X_DIM; col += KNOB_TILE_X_DIM)
{
StoreRasterTile<TTraits, SrcFormat, DstFormat>::Resolve(pResolveSrcHotTile, pDstSurface, (x + col), (y + row), sampleOffset, renderTargetArrayIndex);
pResolveSrcHotTile += sampleOffset * pDstSurface->numSamples;
}
}
}
}
};

77
src/gallium/drivers/swr/swr_context.cpp
View File

@@ -267,65 +267,6 @@ 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)
{
@@ -342,28 +283,14 @@ swr_blit(struct pipe_context *pipe, const struct pipe_blit_info *blit_info)
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.
*/
/* Resolve is done as part of the surface store. */
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. */
/* The resolve target becomes the new source for the blit. */
info.src.resource = resolve_target;
}

10
src/gallium/drivers/swr/swr_screen.cpp
View File

@@ -891,6 +891,10 @@ swr_create_resolve_resource(struct pipe_screen *_screen,
/* Attach it to the multisample resource */
msaa_res->resolve_target = alt;
/* Hang resolve surface state off the multisample surface state to so
* StoreTiles knows where to resolve the surface. */
msaa_res->swr.pAuxBaseAddress = (uint8_t *)&swr_resource(alt)->swr;
}
return true; /* success */
@@ -1009,14 +1013,10 @@ swr_flush_frontbuffer(struct pipe_screen *p_screen,
SwrEndFrame(swr_context(pipe)->swrContext);
}
/* Multisample surfaces need to be resolved before present */
/* Multisample resolved into resolve_target at flush with store_resource */
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;