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i965: enable GL_EXT_vertex_array_bgra

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Simply a matter of choosing the right surface/vertex format for GLubyte/GL_BGRA arrays.
This commit is contained in:
Brian Paul 2009-01-23 11:27:42 -07:00
parent 0bd6d48bce
commit dab586b075
2 changed files with 19 additions and 2 deletions
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20
src/mesa/drivers/dri/i965/brw_draw_upload.c
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@ -156,7 +156,13 @@ static GLuint byte_types_scale[5] = {
};
static GLuint get_surface_type( GLenum type, GLuint size, GLboolean normalized )
/**
* Given vertex array type/size/format/normalized info, return
* the appopriate hardware surface type.
* Format will be GL_RGBA or possibly GL_BGRA for GLubyte[4] color arrays.
*/
static GLuint get_surface_type( GLenum type, GLuint size,
GLenum format, GLboolean normalized )
{
if (INTEL_DEBUG & DEBUG_VERTS)
_mesa_printf("type %s size %d normalized %d\n",
@ -171,11 +177,20 @@ static GLuint get_surface_type( GLenum type, GLuint size, GLboolean normalized )
case GL_BYTE: return byte_types_norm[size];
case GL_UNSIGNED_INT: return uint_types_norm[size];
case GL_UNSIGNED_SHORT: return ushort_types_norm[size];
case GL_UNSIGNED_BYTE: return ubyte_types_norm[size];
case GL_UNSIGNED_BYTE:
if (format == GL_BGRA) {
/* See GL_EXT_vertex_array_bgra */
assert(size == 4);
return BRW_SURFACEFORMAT_B8G8R8A8_UNORM;
}
else {
return ubyte_types_norm[size];
}
default: assert(0); return 0;
}
}
else {
assert(format == GL_RGBA); /* sanity check */
switch (type) {
case GL_DOUBLE: return double_types[size];
case GL_FLOAT: return float_types[size];
@ -484,6 +499,7 @@ static void brw_emit_vertices(struct brw_context *brw)
struct brw_vertex_element *input = enabled[i];
uint32_t format = get_surface_type(input->glarray->Type,
input->glarray->Size,
input->glarray->Format,
input->glarray->Normalized);
uint32_t comp0 = BRW_VE1_COMPONENT_STORE_SRC;
uint32_t comp1 = BRW_VE1_COMPONENT_STORE_SRC;

1
src/mesa/drivers/dri/intel/intel_context.c
View file

@ -414,6 +414,7 @@ static const struct dri_extension brw_extensions[] = {
{ "GL_ARB_vertex_shader", GL_ARB_vertex_shader_functions },
{ "GL_EXT_shadow_funcs", NULL },
{ "GL_EXT_texture_sRGB", NULL },
{ "GL_EXT_vertex_array_bgra", NULL },
{ "GL_ATI_separate_stencil", GL_ATI_separate_stencil_functions },
{ "GL_ATI_texture_env_combine3", NULL },
{ NULL, NULL }