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authorBrian Paul <brian.paul@tungstengraphics.com>2005-09-20 04:36:50 +0000
committerBrian Paul <brian.paul@tungstengraphics.com>2005-09-20 04:36:50 +0000
commitf39569f5509f9298cb5374b9758296d9149add9b (patch)
tree8af060db52b7c86558b81212fecfead0cf1be05c
parent000abaa12de276d757d59d65ca0d99574fc0f2a6 (diff)
some improvements to _swrast_clear_depth_buffer()
-rw-r--r--src/mesa/swrast/s_depth.c29
1 files changed, 13 insertions, 16 deletions
diff --git a/src/mesa/swrast/s_depth.c b/src/mesa/swrast/s_depth.c
index c70fdeabb5..abc034c7f2 100644
--- a/src/mesa/swrast/s_depth.c
+++ b/src/mesa/swrast/s_depth.c
@@ -1296,8 +1296,9 @@ _swrast_clear_depth_buffer( GLcontext *ctx, struct gl_renderbuffer *rb )
* memory, or perhaps the driver mmap'd the zbuffer memory.
*/
if (rb->DataType == GL_UNSIGNED_SHORT) {
- if (width == rb->Width &&
- (clearValue & 0xff) == ((clearValue >> 8) & 0xff)) {
+ if ((clearValue & 0xff) == ((clearValue >> 8) & 0xff) &&
+ ((GLushort *) rb->GetPointer(ctx, rb, 0, 0) + width ==
+ (GLushort *) rb->GetPointer(ctx, rb, 0, 1))) {
/* optimized case */
GLushort *dst = (GLushort *) rb->GetPointer(ctx, rb, x, y);
GLuint len = width * height * sizeof(GLushort);
@@ -1328,25 +1329,21 @@ _swrast_clear_depth_buffer( GLcontext *ctx, struct gl_renderbuffer *rb )
else {
/* Direct access not possible. Use PutRow to write new values. */
if (rb->DataType == GL_UNSIGNED_SHORT) {
- GLushort clearRow[MAX_WIDTH];
- GLint i, j;
- for (j = 0; j < width; j++) {
- clearRow[j] = clearValue;
- }
+ GLushort clearVal16 = (GLushort) (clearValue & 0xffff);
+ GLint i;
for (i = 0; i < height; i++) {
- rb->PutRow(ctx, rb, width, x, y + i, clearRow, NULL);
+ rb->PutMonoRow(ctx, rb, width, x, y + i, &clearVal16, NULL);
}
}
- else {
- GLuint clearRow[MAX_WIDTH];
- GLint i, j;
- assert(rb->DataType == GL_UNSIGNED_INT);
- for (j = 0; j < width; j++) {
- clearRow[j] = clearValue;
- }
+ else if (rb->DataType == GL_UNSIGNED_INT) {
+ GLint i;
+ ASSERT(sizeof(clearValue) == sizeof(GLuint));
for (i = 0; i < height; i++) {
- rb->PutRow(ctx, rb, width, x, y + i, clearRow, NULL);
+ rb->PutMonoRow(ctx, rb, width, x, y + i, &clearValue, NULL);
}
}
+ else {
+ _mesa_problem(ctx, "bad depth renderbuffer DataType");
+ }
}
}