diff options
Diffstat (limited to 'src/mesa/drivers/common/meta_blit.c')
| -rw-r--r-- | src/mesa/drivers/common/meta_blit.c | 37 |
1 files changed, 23 insertions, 14 deletions
diff --git a/src/mesa/drivers/common/meta_blit.c b/src/mesa/drivers/common/meta_blit.c index 955e73f57ca..fc9848a7acd 100644 --- a/src/mesa/drivers/common/meta_blit.c +++ b/src/mesa/drivers/common/meta_blit.c @@ -70,6 +70,16 @@ setup_glsl_msaa_blit_shader(struct gl_context *ctx, const char *sampler_array_suffix = ""; char *name; const char *texcoord_type = "vec2"; + const int samples = MAX2(src_rb->NumSamples, 1); + int shader_offset = 0; + + /* We expect only power of 2 samples in source multisample buffer. */ + assert((samples & (samples - 1)) == 0); + while (samples >> (shader_offset + 1)) { + shader_offset++; + } + /* Update the assert if we plan to support more than 16X MSAA. */ + assert(shader_offset >= 0 && shader_offset <= 4); if (src_rb) { src_datatype = _mesa_get_format_datatype(src_rb->Format); @@ -107,13 +117,15 @@ setup_glsl_msaa_blit_shader(struct gl_context *ctx, } else { if (dst_is_msaa) shader_index = BLIT_MSAA_SHADER_2D_MULTISAMPLE_COPY; - else - shader_index = BLIT_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE; + else { + shader_index = BLIT_1X_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE + + shader_offset; + } } if (target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY) { - shader_index += (BLIT_MSAA_SHADER_2D_MULTISAMPLE_ARRAY_RESOLVE - - BLIT_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE); + shader_index += (BLIT_1X_MSAA_SHADER_2D_MULTISAMPLE_ARRAY_RESOLVE - + BLIT_1X_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE); sampler_array_suffix = "Array"; texcoord_type = "vec3"; } @@ -121,19 +133,19 @@ setup_glsl_msaa_blit_shader(struct gl_context *ctx, default: _mesa_problem(ctx, "Unkown texture target %s\n", _mesa_lookup_enum_by_nr(target)); - shader_index = BLIT_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE; + shader_index = BLIT_2X_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE; } /* We rely on the enum being sorted this way. */ - STATIC_ASSERT(BLIT_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE_INT == - BLIT_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE + 1); - STATIC_ASSERT(BLIT_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE_UINT == - BLIT_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE + 2); + STATIC_ASSERT(BLIT_1X_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE_INT == + BLIT_1X_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE + 5); + STATIC_ASSERT(BLIT_1X_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE_UINT == + BLIT_1X_MSAA_SHADER_2D_MULTISAMPLE_RESOLVE + 10); if (src_datatype == GL_INT) { - shader_index++; + shader_index += 5; vec4_prefix = "i"; } else if (src_datatype == GL_UNSIGNED_INT) { - shader_index += 2; + shader_index += 10; vec4_prefix = "u"; } else { vec4_prefix = ""; @@ -209,7 +221,6 @@ setup_glsl_msaa_blit_shader(struct gl_context *ctx, /* You can create 2D_MULTISAMPLE textures with 0 sample count (meaning 1 * sample). Yes, this is ridiculous. */ - int samples; char *sample_resolve; const char *arb_sample_shading_extension_string; const char *merge_function; @@ -217,8 +228,6 @@ setup_glsl_msaa_blit_shader(struct gl_context *ctx, vec4_prefix, dst_is_msaa ? "copy" : "resolve"); - samples = MAX2(src_rb->NumSamples, 1); - if (dst_is_msaa) { arb_sample_shading_extension_string = "#extension GL_ARB_sample_shading : enable"; sample_resolve = ralloc_asprintf(mem_ctx, " out_color = texelFetch(texSampler, i%s(texCoords), gl_SampleID);", texcoord_type); |