diff options
Diffstat (limited to 'mesalib/src/mesa/state_tracker/st_extensions.c')
| -rw-r--r-- | mesalib/src/mesa/state_tracker/st_extensions.c | 33 |
1 files changed, 28 insertions, 5 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_extensions.c b/mesalib/src/mesa/state_tracker/st_extensions.c index 93ef7a91c..262cc3d6c 100644 --- a/mesalib/src/mesa/state_tracker/st_extensions.c +++ b/mesalib/src/mesa/state_tracker/st_extensions.c @@ -494,6 +494,14 @@ void st_init_extensions(struct st_context *st) PIPE_FORMAT_B10G10R10A2_SSCALED } }, }; + static const struct st_extension_format_mapping tbo_rgb32[] = { + { {o(ARB_texture_buffer_object_rgb32) }, + { PIPE_FORMAT_R32G32B32_FLOAT, + PIPE_FORMAT_R32G32B32_UINT, + PIPE_FORMAT_R32G32B32_SINT, + } }, + }; + /* * Extensions that are supported by all Gallium drivers: */ @@ -570,10 +578,7 @@ void st_init_extensions(struct st_context *st) glsl_feature_level = screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL); if (glsl_feature_level >= 140) { - if (ctx->API == API_OPENGL_CORE) - ctx->Const.GLSLVersion = 140; - else - ctx->Const.GLSLVersion = 130; + ctx->Const.GLSLVersion = 140; } else if (glsl_feature_level >= 130) { ctx->Const.GLSLVersion = 130; } else { @@ -664,6 +669,24 @@ void st_init_extensions(struct st_context *st) if (ctx->Const.MinMapBufferAlignment >= 64) { ctx->Extensions.ARB_map_buffer_alignment = GL_TRUE; } - if (screen->get_param(screen, PIPE_CAP_TEXTURE_BUFFER_OBJECTS)) + if (screen->get_param(screen, PIPE_CAP_TEXTURE_BUFFER_OBJECTS)) { ctx->Extensions.ARB_texture_buffer_object = GL_TRUE; + init_format_extensions(st, tbo_rgb32, Elements(tbo_rgb32), + PIPE_BUFFER, PIPE_BIND_SAMPLER_VIEW); + } + + + /* Unpacking a varying in the fragment shader costs 1 texture indirection. + * If the number of available texture indirections is very limited, then we + * prefer to disable varying packing rather than run the risk of varying + * packing preventing a shader from running. + */ + if (screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT, + PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS) <= 8) { + /* We can't disable varying packing if transform feedback is available, + * because transform feedback code assumes a packed varying layout. + */ + if (!ctx->Extensions.EXT_transform_feedback) + ctx->Const.DisableVaryingPacking = GL_TRUE; + } } |