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mesa: Add renderbuffer accessors for MESA_FORMAT_RGBA_FLOAT32.

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Reviewed-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Eric Anholt 2011-04-15 13:36:40 -07:00
parent a45b757f78
commit ba99c2fbd9
1 changed files with 27 additions and 0 deletions
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27
src/mesa/main/renderbuffer.c
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@ -113,6 +113,23 @@ get_row_generic(struct gl_context *ctx, struct gl_renderbuffer *rb,
memcpy(values, src, count * _mesa_get_format_bytes(rb->Format));
}
/* Only used for float textures currently, but might also be used for
* RGBA8888, RGBA16, etc.
*/
static void
get_values_generic(struct gl_context *ctx, struct gl_renderbuffer *rb,
GLuint count, const GLint x[], const GLint y[], void *values)
{
int format_bytes = _mesa_get_format_bytes(rb->Format) / sizeof(GLfloat);
GLuint i;
for (i = 0; i < count; i++) {
const void *src = rb->GetPointer(ctx, rb, x[i], y[i]);
memcpy(values + i * format_bytes, src, format_bytes);
}
}
/* For the GL_RED/GL_RG/GL_RGB format/DataType combinations (and
* GL_LUMINANCE/GL_INTENSITY?), the Put functions are a matter of
* storing those initial components of the value per pixel into the
@ -1238,6 +1255,16 @@ _mesa_set_renderbuffer_accessors(struct gl_renderbuffer *rb)
rb->PutMonoValues = put_mono_values_uint;
break;
case MESA_FORMAT_RGBA_FLOAT32:
rb->GetRow = get_row_generic;
rb->GetValues = get_values_generic;
rb->PutRow = put_row_generic;
rb->PutRowRGB = NULL;
rb->PutMonoRow = put_mono_row_generic;
rb->PutValues = put_values_generic;
rb->PutMonoValues = put_mono_values_generic;
break;
default:
break;
}