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add support for GL_RENDERBUFFER_RED/GREEN/BLUE/etc_SIZE_EXT querie

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This commit is contained in:
Brian Paul
2005-05-31 23:55:21 +00:00
parent 5d5100aabc
commit 1b93953fbc
1 changed files with 57 additions and 0 deletions
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src/mesa/main/fbobject.c
+57
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@@ -339,6 +339,9 @@ test_attachment_completeness(const GLcontext *ctx, GLenum format,
* Status field with the results.
* Also update the framebuffer's Width and Height fields if the
* framebuffer is complete.
*
* XXX Need to check for FRAMEBUFFER_INCOMPLETE_DUPLICATE_ATTACHMENT_EXT!
*
*/
void
_mesa_test_framebuffer_completeness(GLcontext *ctx, struct gl_framebuffer *fb)
@@ -722,6 +725,59 @@ _mesa_GetRenderbufferParameterivEXT(GLenum target, GLenum pname, GLint *params)
case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT:
*params = ctx->CurrentRenderbuffer->InternalFormat;
return;
case GL_RENDERBUFFER_RED_SIZE_EXT:
if (ctx->CurrentRenderbuffer->_BaseFormat == GL_RGB ||
ctx->CurrentRenderbuffer->_BaseFormat == GL_RGBA) {
*params = ctx->CurrentRenderbuffer->ComponentSizes[0];
}
else {
*params = 0;
}
break;
case GL_RENDERBUFFER_GREEN_SIZE_EXT:
if (ctx->CurrentRenderbuffer->_BaseFormat == GL_RGB ||
ctx->CurrentRenderbuffer->_BaseFormat == GL_RGBA) {
*params = ctx->CurrentRenderbuffer->ComponentSizes[1];
}
else {
*params = 0;
}
break;
case GL_RENDERBUFFER_BLUE_SIZE_EXT:
if (ctx->CurrentRenderbuffer->_BaseFormat == GL_RGB ||
ctx->CurrentRenderbuffer->_BaseFormat == GL_RGBA) {
*params = ctx->CurrentRenderbuffer->ComponentSizes[2];
}
else {
*params = 0;
}
break;
case GL_RENDERBUFFER_ALPHA_SIZE_EXT:
if (ctx->CurrentRenderbuffer->_BaseFormat == GL_RGB ||
ctx->CurrentRenderbuffer->_BaseFormat == GL_RGBA) {
*params = ctx->CurrentRenderbuffer->ComponentSizes[3];
}
else {
*params = 0;
}
break;
case GL_RENDERBUFFER_DEPTH_SIZE_EXT:
if (ctx->CurrentRenderbuffer->_BaseFormat == GL_DEPTH_COMPONENT) {
*params = ctx->CurrentRenderbuffer->ComponentSizes[0];
}
else {
*params = 0;
}
break;
case GL_RENDERBUFFER_STENCIL_SIZE_EXT:
if (ctx->CurrentRenderbuffer->_BaseFormat == GL_STENCIL_INDEX) {
*params = ctx->CurrentRenderbuffer->ComponentSizes[0];
}
else {
*params = 0;
}
break;
default:
_mesa_error(ctx, GL_INVALID_ENUM,
"glGetRenderbufferParameterivEXT(target)");
@@ -1234,6 +1290,7 @@ _mesa_GenerateMipmapEXT(GLenum target)
case GL_TEXTURE_2D:
case GL_TEXTURE_3D:
case GL_TEXTURE_CUBE_MAP:
/* OK, legal value */
break;
default:
_mesa_error(ctx, GL_INVALID_ENUM, "glGenerateMipmapEXT(target)");