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st/mesa: support EXT_texture_shared_exponent

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Reviewed-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Marek Olšák
2011-04-26 02:23:33 +02:00
parent 9d7698c468
commit 1da44f5923
3 changed files with 23 additions and 0 deletions
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4
src/mesa/state_tracker/st_cb_drawpixels.c
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@@ -372,6 +372,10 @@ internal_format(struct gl_context *ctx, GLenum format, GLenum type)
return
ctx->Extensions.ARB_texture_float ? GL_RGBA32F :
ctx->Extensions.EXT_texture_snorm ? GL_RGBA16_SNORM : GL_RGBA16;
case GL_UNSIGNED_INT_5_9_9_9_REV:
assert(ctx->Extensions.EXT_texture_shared_exponent);
return GL_RGB9_E5;
}
}
}

6
src/mesa/state_tracker/st_extensions.c
View File

@@ -576,4 +576,10 @@ void st_init_extensions(struct st_context *st)
if (st->pipe->texture_barrier) {
ctx->Extensions.NV_texture_barrier = GL_TRUE;
}
if (screen->is_format_supported(screen, PIPE_FORMAT_R9G9B9E5_FLOAT,
PIPE_TEXTURE_2D, 0,
PIPE_BIND_SAMPLER_VIEW)) {
ctx->Extensions.EXT_texture_shared_exponent = GL_TRUE;
}
}

13
src/mesa/state_tracker/st_format.c
View File

@@ -325,6 +325,9 @@ st_mesa_format_to_pipe_format(gl_format mesaFormat)
case MESA_FORMAT_SIGNED_I16:
return PIPE_FORMAT_I16_SNORM;
case MESA_FORMAT_RGB9_E5_FLOAT:
return PIPE_FORMAT_R9G9B9E5_FLOAT;
default:
assert(0);
return PIPE_FORMAT_NONE;
@@ -545,6 +548,9 @@ st_pipe_format_to_mesa_format(enum pipe_format format)
case PIPE_FORMAT_I16_SNORM:
return MESA_FORMAT_SIGNED_I16;
case PIPE_FORMAT_R9G9B9E5_FLOAT:
return MESA_FORMAT_RGB9_E5_FLOAT;
default:
assert(0);
return MESA_FORMAT_NONE;
@@ -1483,6 +1489,13 @@ st_choose_format(struct pipe_screen *screen, GLenum internalFormat,
target, sample_count, bindings);
}
case GL_RGB9_E5:
if (screen->is_format_supported(screen, PIPE_FORMAT_R9G9B9E5_FLOAT, target,
sample_count, bindings)) {
return PIPE_FORMAT_R9G9B9E5_FLOAT;
}
return PIPE_FORMAT_NONE;
default:
return PIPE_FORMAT_NONE;
}