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implement read_quad_f_swz()

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This commit is contained in:
Brian 2007-07-30 14:00:27 -06:00
parent 3a35ce3364
commit 09574bee85
1 changed files with 15 additions and 6 deletions
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21
src/mesa/drivers/dri/i915tex/intel_surface.c
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@ -23,17 +23,28 @@
* XXX a lof of this is a temporary kludge
*/
extern void
intel_map_unmap_buffers(struct intel_context *intel, GLboolean map);
static void
read_quad_f_swz(struct softpipe_surface *gs, GLint x, GLint y,
read_quad_f_swz(struct softpipe_surface *sps, GLint x, GLint y,
GLfloat (*rrrr)[QUAD_SIZE])
{
struct intel_surface *is = (struct intel_surface *) sps;
struct intel_renderbuffer *irb = is->rb;
const GLubyte *src = (const GLubyte *) irb->region->map
+ (y * irb->region->pitch + x) * irb->region->cpp;
GLfloat *dst = (GLfloat *) rrrr;
GLubyte temp[16];
GLuint i, j;
memcpy(temp, src, 8);
memcpy(temp + 8, src + irb->region->pitch * irb->region->cpp, 8);
for (i = 0; i < 4; i++) {
for (j = 0; j < 4; j++) {
dst[j * 4 + i] = UBYTE_TO_FLOAT(temp[i * 4 + j]);
}
}
}
@ -55,8 +66,6 @@ write_quad_f_swz(struct softpipe_surface *sps, GLint x, GLint y,
}
}
printf("intel_surface::write_quad\n");
memcpy(dst, temp, 8);
memcpy(dst + irb->region->pitch * irb->region->cpp, temp + 8, 8);
}