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path: root/src/mesa/state_tracker/st_cb_texture.c
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Diffstat (limited to 'src/mesa/state_tracker/st_cb_texture.c')
-rw-r--r--src/mesa/state_tracker/st_cb_texture.c59
1 files changed, 40 insertions, 19 deletions
diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c
index 3454c3e8e8..3d9c550d8c 100644
--- a/src/mesa/state_tracker/st_cb_texture.c
+++ b/src/mesa/state_tracker/st_cb_texture.c
@@ -31,6 +31,7 @@
#include "main/image.h"
#include "main/macros.h"
#include "main/mipmap.h"
+#include "main/pixel.h"
#include "main/texcompress.h"
#include "main/texformat.h"
#include "main/teximage.h"
@@ -1038,7 +1039,6 @@ fallback_copy_texsubimage(GLcontext *ctx,
const uint face = texture_face(target);
struct pipe_texture *pt = stImage->pt;
struct pipe_surface *src_surf, *dest_surf;
- GLfloat *data;
GLint row, yStep;
st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL);
@@ -1056,25 +1056,38 @@ fallback_copy_texsubimage(GLcontext *ctx,
dest_surf = screen->get_tex_surface(screen, pt, face, level, destZ);
- /* buffer for one row */
- data = (GLfloat *) malloc(width * 4 * sizeof(GLfloat));
+ assert(width <= MAX_WIDTH);
- /* do copy row by row */
- for (row = 0; row < height; row++) {
- pipe_get_tile_rgba(pipe, src_surf, srcX, srcY + row, width, 1, data);
-
- /* XXX we're ignoring convolution for now */
- if (ctx->_ImageTransferState) {
- _mesa_apply_rgba_transfer_ops(ctx,
- ctx->_ImageTransferState & ~IMAGE_CONVOLUTION_BIT,
- width, (GLfloat (*)[4])data);
+ /*
+ * To avoid a large temp memory allocation, do copy row by row.
+ */
+ if (baseFormat == GL_DEPTH_COMPONENT) {
+ const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F ||
+ ctx->Pixel.DepthBias != 0.0F);
+
+ for (row = 0; row < height; row++, srcY++, destY += yStep) {
+ uint data[MAX_WIDTH];
+ pipe_get_tile_z(pipe, src_surf, srcX, srcY, width, 1, data);
+ if (scaleOrBias) {
+ _mesa_scale_and_bias_depth_uint(ctx, width, data);
+ }
+ pipe_put_tile_z(pipe, dest_surf, destX, destY, width, 1, data);
+ }
+ }
+ else {
+ /* RGBA format */
+ for (row = 0; row < height; row++, srcY++, destY += yStep) {
+ float data[4 * MAX_WIDTH];
+ pipe_get_tile_rgba(pipe, src_surf, srcX, srcY, width, 1, data);
+ /* XXX we're ignoring convolution for now */
+ if (ctx->_ImageTransferState) {
+ _mesa_apply_rgba_transfer_ops(ctx,
+ ctx->_ImageTransferState & ~IMAGE_CONVOLUTION_BIT,
+ width, (GLfloat (*)[4]) data);
+ }
+ pipe_put_tile_rgba(pipe, dest_surf, destX, destY, width, 1, data);
}
-
- pipe_put_tile_rgba(pipe, dest_surf, destX, destY, width, 1, data);
- destY += yStep;
}
-
- free(data);
}
@@ -1111,6 +1124,7 @@ do_copy_texsubimage(GLcontext *ctx,
struct pipe_surface *dest_surface;
uint dest_format, src_format;
uint do_flip = FALSE;
+ GLboolean use_fallback = GL_TRUE;
(void) texImage;
@@ -1178,7 +1192,12 @@ do_copy_texsubimage(GLcontext *ctx,
srcX, srcY,
/* size */
width, height);
- } else {
+ use_fallback = GL_FALSE;
+ }
+ else if (screen->is_format_supported(screen, strb->surface->format,
+ PIPE_TEXTURE) &&
+ screen->is_format_supported(screen, dest_surface->format,
+ PIPE_SURFACE)) {
util_blit_pixels(ctx->st->blit,
strb->surface,
srcX, do_flip ? srcY + height : srcY,
@@ -1186,10 +1205,12 @@ do_copy_texsubimage(GLcontext *ctx,
dest_surface,
destX, destY, destX + width, destY + height,
0.0, PIPE_TEX_MIPFILTER_NEAREST);
+ use_fallback = GL_FALSE;
}
#endif
}
- else {
+
+ if (use_fallback) {
fallback_copy_texsubimage(ctx, target, level,
strb, stImage, baseFormat,
destX, destY, destZ,