[Mesa-dev] [PATCH 3/4] st/mesa: add support for ARB_texture_multisample
Dave Airlie
airlied at gmail.com
Sun Mar 3 12:27:53 PST 2013
From: Dave Airlie <airlied at redhat.com>
This adds support to the mesa state tracker for ARB_texture_multisample.
hardware doesn't seem to use a different texture instructions, so
I don't think we need to create one for TGSI at this time.
Thanks to Marek for fixes to sample number picking.
Signed-off-by: Dave Airlie <airlied at redhat.com>
---
src/mesa/state_tracker/st_atom_framebuffer.c | 1 +
src/mesa/state_tracker/st_atom_msaa.c | 2 ++
src/mesa/state_tracker/st_cb_bitmap.c | 4 +--
src/mesa/state_tracker/st_cb_drawpixels.c | 2 +-
src/mesa/state_tracker/st_cb_fbo.c | 2 +-
src/mesa/state_tracker/st_cb_texture.c | 41 ++++++++++++++++++++++++----
src/mesa/state_tracker/st_extensions.c | 7 +++++
src/mesa/state_tracker/st_gen_mipmap.c | 1 +
src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 17 ++++++++++--
src/mesa/state_tracker/st_mesa_to_tgsi.c | 2 ++
src/mesa/state_tracker/st_texture.c | 8 +++++-
src/mesa/state_tracker/st_texture.h | 1 +
12 files changed, 74 insertions(+), 14 deletions(-)
diff --git a/src/mesa/state_tracker/st_atom_framebuffer.c b/src/mesa/state_tracker/st_atom_framebuffer.c
index 3df8691..c752640 100644
--- a/src/mesa/state_tracker/st_atom_framebuffer.c
+++ b/src/mesa/state_tracker/st_atom_framebuffer.c
@@ -59,6 +59,7 @@ update_renderbuffer_surface(struct st_context *st,
enum pipe_format format = st->ctx->Color.sRGBEnabled ? resource->format : util_format_linear(resource->format);
if (!strb->surface ||
+ strb->surface->texture->nr_samples != strb->Base.NumSamples ||
strb->surface->format != format ||
strb->surface->texture != resource ||
strb->surface->width != rtt_width ||
diff --git a/src/mesa/state_tracker/st_atom_msaa.c b/src/mesa/state_tracker/st_atom_msaa.c
index 9baa4fc..b749a17 100644
--- a/src/mesa/state_tracker/st_atom_msaa.c
+++ b/src/mesa/state_tracker/st_atom_msaa.c
@@ -63,6 +63,8 @@ static void update_sample_mask( struct st_context *st )
sample_mask = ~sample_mask;
}
/* TODO merge with app-supplied sample mask */
+ if (st->ctx->Multisample.SampleMask)
+ sample_mask = st->ctx->Multisample.SampleMaskValue;
}
/* mask off unused bits or don't care? */
diff --git a/src/mesa/state_tracker/st_cb_bitmap.c b/src/mesa/state_tracker/st_cb_bitmap.c
index 36fffe9..d7a95e2 100644
--- a/src/mesa/state_tracker/st_cb_bitmap.c
+++ b/src/mesa/state_tracker/st_cb_bitmap.c
@@ -299,7 +299,7 @@ make_bitmap_texture(struct gl_context *ctx, GLsizei width, GLsizei height,
* Create texture to hold bitmap pattern.
*/
pt = st_texture_create(st, st->internal_target, st->bitmap.tex_format,
- 0, width, height, 1, 1,
+ 0, width, height, 1, 1, 0,
PIPE_BIND_SAMPLER_VIEW);
if (!pt) {
_mesa_unmap_pbo_source(ctx, unpack);
@@ -568,7 +568,7 @@ reset_cache(struct st_context *st)
cache->texture = st_texture_create(st, PIPE_TEXTURE_2D,
st->bitmap.tex_format, 0,
BITMAP_CACHE_WIDTH, BITMAP_CACHE_HEIGHT,
- 1, 1,
+ 1, 1, 0,
PIPE_BIND_SAMPLER_VIEW);
}
diff --git a/src/mesa/state_tracker/st_cb_drawpixels.c b/src/mesa/state_tracker/st_cb_drawpixels.c
index e282bf9..e609eb5 100644
--- a/src/mesa/state_tracker/st_cb_drawpixels.c
+++ b/src/mesa/state_tracker/st_cb_drawpixels.c
@@ -463,7 +463,7 @@ alloc_texture(struct st_context *st, GLsizei width, GLsizei height,
struct pipe_resource *pt;
pt = st_texture_create(st, st->internal_target, texFormat, 0,
- width, height, 1, 1, PIPE_BIND_SAMPLER_VIEW);
+ width, height, 1, 1, 0, PIPE_BIND_SAMPLER_VIEW);
return pt;
}
diff --git a/src/mesa/state_tracker/st_cb_fbo.c b/src/mesa/state_tracker/st_cb_fbo.c
index 72bc960..cf3e27f 100644
--- a/src/mesa/state_tracker/st_cb_fbo.c
+++ b/src/mesa/state_tracker/st_cb_fbo.c
@@ -430,7 +430,7 @@ st_render_texture(struct gl_context *ctx,
strb->rtt_level = att->TextureLevel;
strb->rtt_face = att->CubeMapFace;
strb->rtt_slice = att->Zoffset;
-
+ rb->NumSamples = texImage->NumSamples;
rb->Width = texImage->Width2;
rb->Height = texImage->Height2;
rb->_BaseFormat = texImage->_BaseFormat;
diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c
index c922a31..385bac6 100644
--- a/src/mesa/state_tracker/st_cb_texture.c
+++ b/src/mesa/state_tracker/st_cb_texture.c
@@ -78,6 +78,8 @@ gl_target_to_pipe(GLenum target)
case GL_TEXTURE_2D:
case GL_PROXY_TEXTURE_2D:
case GL_TEXTURE_EXTERNAL_OES:
+ case GL_TEXTURE_2D_MULTISAMPLE:
+ case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
return PIPE_TEXTURE_2D;
case GL_TEXTURE_RECTANGLE_NV:
case GL_PROXY_TEXTURE_RECTANGLE_NV:
@@ -99,6 +101,8 @@ gl_target_to_pipe(GLenum target)
return PIPE_TEXTURE_1D_ARRAY;
case GL_TEXTURE_2D_ARRAY_EXT:
case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
+ case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
+ case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
return PIPE_TEXTURE_2D_ARRAY;
case GL_TEXTURE_BUFFER:
return PIPE_BUFFER;
@@ -408,7 +412,7 @@ guess_and_alloc_texture(struct st_context *st,
ptWidth,
ptHeight,
ptDepth,
- ptLayers,
+ ptLayers, 0,
bindings);
stObj->lastLevel = lastLevel;
@@ -496,7 +500,7 @@ st_AllocTextureImageBuffer(struct gl_context *ctx,
ptWidth,
ptHeight,
ptDepth,
- ptLayers,
+ ptLayers, 0,
bindings);
return stImage->pt != NULL;
}
@@ -1484,7 +1488,7 @@ st_finalize_texture(struct gl_context *ctx,
GLuint face;
struct st_texture_image *firstImage;
enum pipe_format firstImageFormat;
- GLuint ptWidth, ptHeight, ptDepth, ptLayers;
+ GLuint ptWidth, ptHeight, ptDepth, ptLayers, ptNumSamples;
if (_mesa_is_texture_complete(tObj, &tObj->Sampler)) {
/* The texture is complete and we know exactly how many mipmap levels
@@ -1548,6 +1552,7 @@ st_finalize_texture(struct gl_context *ctx,
/* convert GL dims to Gallium dims */
st_gl_texture_dims_to_pipe_dims(stObj->base.Target, width, height, depth,
&ptWidth, &ptHeight, &ptDepth, &ptLayers);
+ ptNumSamples = firstImage->base.NumSamples;
}
/* If we already have a gallium texture, check that it matches the texture
@@ -1560,6 +1565,7 @@ st_finalize_texture(struct gl_context *ctx,
stObj->pt->width0 != ptWidth ||
stObj->pt->height0 != ptHeight ||
stObj->pt->depth0 != ptDepth ||
+ stObj->pt->nr_samples != ptNumSamples ||
stObj->pt->array_size != ptLayers)
{
/* The gallium texture does not match the Mesa texture so delete the
@@ -1583,7 +1589,7 @@ st_finalize_texture(struct gl_context *ctx,
ptWidth,
ptHeight,
ptDepth,
- ptLayers,
+ ptLayers, ptNumSamples,
bindings);
if (!stObj->pt) {
@@ -1629,11 +1635,14 @@ st_AllocTextureStorage(struct gl_context *ctx,
GLsizei height, GLsizei depth)
{
const GLuint numFaces = _mesa_num_tex_faces(texObj->Target);
+ struct gl_texture_image *texImage = texObj->Image[0][0];
struct st_context *st = st_context(ctx);
struct st_texture_object *stObj = st_texture_object(texObj);
+ struct pipe_screen *screen = st->pipe->screen;
GLuint ptWidth, ptHeight, ptDepth, ptLayers, bindings;
enum pipe_format fmt;
GLint level;
+ int num_samples = texImage->NumSamples;
assert(levels > 0);
@@ -1643,10 +1652,30 @@ st_AllocTextureStorage(struct gl_context *ctx,
stObj->depth0 = depth;
stObj->lastLevel = levels - 1;
- fmt = st_mesa_format_to_pipe_format(texObj->Image[0][0]->TexFormat);
+ fmt = st_mesa_format_to_pipe_format(texImage->TexFormat);
bindings = default_bindings(st, fmt);
+ /* Raise the sample count if the requested one is unsupported. */
+ if (num_samples > 1) {
+ boolean found = FALSE;
+
+ for (; num_samples <= ctx->Const.MaxSamples; num_samples++) {
+ if (screen->is_format_supported(screen, fmt, PIPE_TEXTURE_2D,
+ num_samples,
+ PIPE_BIND_SAMPLER_VIEW)) {
+ /* Update the sample count in gl_texture_image as well. */
+ texImage->NumSamples = num_samples;
+ found = TRUE;
+ break;
+ }
+ }
+
+ if (!found) {
+ return GL_FALSE;
+ }
+ }
+
st_gl_texture_dims_to_pipe_dims(texObj->Target,
width, height, depth,
&ptWidth, &ptHeight, &ptDepth, &ptLayers);
@@ -1658,7 +1687,7 @@ st_AllocTextureStorage(struct gl_context *ctx,
ptWidth,
ptHeight,
ptDepth,
- ptLayers,
+ ptLayers, num_samples,
bindings);
if (!stObj->pt)
return GL_FALSE;
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index 11db9d3..9526c41 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -651,6 +651,9 @@ void st_init_extensions(struct st_context *st)
PIPE_TEXTURE_2D, i,
PIPE_BIND_RENDER_TARGET)) {
ctx->Const.MaxSamples = i;
+ ctx->Const.MaxColorTextureSamples = i;
+ ctx->Const.MaxDepthTextureSamples = i;
+ ctx->Const.MaxIntegerSamples = i;
break;
}
}
@@ -712,4 +715,8 @@ void st_init_extensions(struct st_context *st)
if (!ctx->Extensions.EXT_transform_feedback)
ctx->Const.DisableVaryingPacking = GL_TRUE;
}
+
+ if (screen->get_param(screen, PIPE_CAP_TEXTURE_MULTISAMPLE))
+ ctx->Extensions.ARB_texture_multisample = GL_TRUE;
+
}
diff --git a/src/mesa/state_tracker/st_gen_mipmap.c b/src/mesa/state_tracker/st_gen_mipmap.c
index 8ce2e06..e5512af 100644
--- a/src/mesa/state_tracker/st_gen_mipmap.c
+++ b/src/mesa/state_tracker/st_gen_mipmap.c
@@ -172,6 +172,7 @@ st_generate_mipmap(struct gl_context *ctx, GLenum target,
oldTex->height0,
oldTex->depth0,
oldTex->array_size,
+ 0,
oldTex->bind);
/* This will copy the old texture's base image into the new texture
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index c41b583..2f69301 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -2674,7 +2674,7 @@ glsl_to_tgsi_visitor::visit(ir_call *ir)
void
glsl_to_tgsi_visitor::visit(ir_texture *ir)
{
- st_src_reg result_src, coord, cube_sc, lod_info, projector, dx, dy, offset;
+ st_src_reg result_src, coord, cube_sc, lod_info, projector, dx, dy, offset, sample_index;
st_dst_reg result_dst, coord_dst, cube_sc_dst;
glsl_to_tgsi_instruction *inst = NULL;
unsigned opcode = TGSI_OPCODE_NOP;
@@ -2697,6 +2697,7 @@ glsl_to_tgsi_visitor::visit(ir_texture *ir)
*/
coord = get_temp(glsl_type::vec4_type);
coord_dst = st_dst_reg(coord);
+ coord_dst.writemask = (1 << ir->coordinate->type->vector_elements) - 1;
emit(ir, TGSI_OPCODE_MOV, coord_dst, this->result);
}
@@ -2747,7 +2748,9 @@ glsl_to_tgsi_visitor::visit(ir_texture *ir)
}
break;
case ir_txf_ms:
- assert(!"Unexpected ir_txf_ms opcode");
+ opcode = TGSI_OPCODE_TXF;
+ ir->lod_info.sample_index->accept(this);
+ sample_index = this->result;
break;
}
@@ -2831,7 +2834,11 @@ glsl_to_tgsi_visitor::visit(ir_texture *ir)
}
}
- if (opcode == TGSI_OPCODE_TXL || opcode == TGSI_OPCODE_TXB ||
+ if (ir->op == ir_txf_ms) {
+ coord_dst.writemask = WRITEMASK_W;
+ emit(ir, TGSI_OPCODE_MOV, coord_dst, sample_index);
+ coord_dst.writemask = WRITEMASK_XYZW;
+ } else if (opcode == TGSI_OPCODE_TXL || opcode == TGSI_OPCODE_TXB ||
opcode == TGSI_OPCODE_TXF) {
/* TGSI stores LOD or LOD bias in the last channel of the coords. */
coord_dst.writemask = WRITEMASK_W;
@@ -2893,6 +2900,10 @@ glsl_to_tgsi_visitor::visit(ir_texture *ir)
case GLSL_SAMPLER_DIM_EXTERNAL:
inst->tex_target = TEXTURE_EXTERNAL_INDEX;
break;
+ case GLSL_SAMPLER_DIM_MS:
+ inst->tex_target = (sampler_type->sampler_array)
+ ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX : TEXTURE_2D_MULTISAMPLE_INDEX;
+ break;
default:
assert(!"Should not get here.");
}
diff --git a/src/mesa/state_tracker/st_mesa_to_tgsi.c b/src/mesa/state_tracker/st_mesa_to_tgsi.c
index e326bcc..b07e37f 100644
--- a/src/mesa/state_tracker/st_mesa_to_tgsi.c
+++ b/src/mesa/state_tracker/st_mesa_to_tgsi.c
@@ -269,6 +269,8 @@ st_translate_texture_target( GLuint textarget,
}
switch( textarget ) {
+ case TEXTURE_2D_MULTISAMPLE_INDEX: return TGSI_TEXTURE_2D_MSAA;
+ case TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX: return TGSI_TEXTURE_2D_ARRAY_MSAA;
case TEXTURE_BUFFER_INDEX: return TGSI_TEXTURE_BUFFER;
case TEXTURE_1D_INDEX: return TGSI_TEXTURE_1D;
case TEXTURE_2D_INDEX: return TGSI_TEXTURE_2D;
diff --git a/src/mesa/state_tracker/st_texture.c b/src/mesa/state_tracker/st_texture.c
index ed37098..9a27182 100644
--- a/src/mesa/state_tracker/st_texture.c
+++ b/src/mesa/state_tracker/st_texture.c
@@ -60,6 +60,7 @@ st_texture_create(struct st_context *st,
GLuint height0,
GLuint depth0,
GLuint layers,
+ GLuint nr_samples,
GLuint bind )
{
struct pipe_resource pt, *newtex;
@@ -90,6 +91,7 @@ st_texture_create(struct st_context *st,
pt.usage = PIPE_USAGE_DEFAULT;
pt.bind = bind;
pt.flags = 0;
+ pt.nr_samples = nr_samples;
newtex = screen->resource_create(screen, &pt);
@@ -138,6 +140,8 @@ st_gl_texture_dims_to_pipe_dims(GLenum texture,
case GL_TEXTURE_RECTANGLE:
case GL_PROXY_TEXTURE_RECTANGLE:
case GL_TEXTURE_EXTERNAL_OES:
+ case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
+ case GL_TEXTURE_2D_MULTISAMPLE:
assert(depthIn == 1);
*widthOut = widthIn;
*heightOut = heightIn;
@@ -159,7 +163,9 @@ st_gl_texture_dims_to_pipe_dims(GLenum texture,
*layersOut = 6;
break;
case GL_TEXTURE_2D_ARRAY:
+ case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
case GL_PROXY_TEXTURE_2D_ARRAY:
+ case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
*widthOut = widthIn;
*heightOut = heightIn;
*depthOut = 1;
@@ -402,7 +408,7 @@ st_create_color_map_texture(struct gl_context *ctx)
/* create texture for color map/table */
pt = st_texture_create(st, PIPE_TEXTURE_2D, format, 0,
- texSize, texSize, 1, 1, PIPE_BIND_SAMPLER_VIEW);
+ texSize, texSize, 1, 1, 0, PIPE_BIND_SAMPLER_VIEW);
return pt;
}
diff --git a/src/mesa/state_tracker/st_texture.h b/src/mesa/state_tracker/st_texture.h
index 8a70100..da899c9 100644
--- a/src/mesa/state_tracker/st_texture.h
+++ b/src/mesa/state_tracker/st_texture.h
@@ -153,6 +153,7 @@ st_texture_create(struct st_context *st,
GLuint height0,
GLuint depth0,
GLuint layers,
+ GLuint nr_samples,
GLuint tex_usage );
--
1.8.1.2
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