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-rw-r--r--src/mesa/drivers/common/meta.c7
-rw-r--r--src/mesa/drivers/common/meta_blit.c38
2 files changed, 43 insertions, 2 deletions
diff --git a/src/mesa/drivers/common/meta.c b/src/mesa/drivers/common/meta.c
index ddd0b1ad19a..ac27abba6af 100644
--- a/src/mesa/drivers/common/meta.c
+++ b/src/mesa/drivers/common/meta.c
@@ -2783,6 +2783,13 @@ copytexsubimage_using_blit_framebuffer(struct gl_context *ctx, GLuint dims,
goto out;
ctx->Meta->Blit.no_ctsi_fallback = true;
+
+ /* Since we've bound a new draw framebuffer, we need to update
+ * its derived state -- _Xmin, etc -- for BlitFramebuffer's clipping to
+ * be correct.
+ */
+ _mesa_update_state(ctx);
+
/* We skip the core BlitFramebuffer checks for format consistency, which
* are too strict for CopyTexImage. We know meta will be fine with format
* changes.
diff --git a/src/mesa/drivers/common/meta_blit.c b/src/mesa/drivers/common/meta_blit.c
index 69a600c584e..5d72dd2ec02 100644
--- a/src/mesa/drivers/common/meta_blit.c
+++ b/src/mesa/drivers/common/meta_blit.c
@@ -33,11 +33,13 @@
#include "main/enable.h"
#include "main/enums.h"
#include "main/fbobject.h"
+#include "main/image.h"
#include "main/macros.h"
#include "main/matrix.h"
#include "main/multisample.h"
#include "main/objectlabel.h"
#include "main/readpix.h"
+#include "main/scissor.h"
#include "main/shaderapi.h"
#include "main/texobj.h"
#include "main/texenv.h"
@@ -627,6 +629,15 @@ _mesa_meta_BlitFramebuffer(struct gl_context *ctx,
const GLint dstH = abs(dstY1 - dstY0);
const GLint dstFlipX = (dstX1 - dstX0) / dstW;
const GLint dstFlipY = (dstY1 - dstY0) / dstH;
+
+ struct {
+ GLint srcX0, srcY0, srcX1, srcY1;
+ GLint dstX0, dstY0, dstX1, dstY1;
+ } clip = {
+ srcX0, srcY0, srcX1, srcY1,
+ dstX0, dstY0, dstX1, dstY1
+ };
+
const GLboolean use_glsl_version = ctx->Extensions.ARB_vertex_shader &&
ctx->Extensions.ARB_fragment_shader;
@@ -636,8 +647,31 @@ _mesa_meta_BlitFramebuffer(struct gl_context *ctx,
goto fallback;
}
- /* only scissor effects blit so save/clear all other relevant state */
- _mesa_meta_begin(ctx, ~MESA_META_SCISSOR);
+ /* Clip a copy of the blit coordinates. If these differ from the input
+ * coordinates, then we'll set the scissor.
+ */
+ if (!_mesa_clip_blit(ctx, &clip.srcX0, &clip.srcY0, &clip.srcX1, &clip.srcY1,
+ &clip.dstX0, &clip.dstY0, &clip.dstX1, &clip.dstY1)) {
+ /* clipped/scissored everything away */
+ return;
+ }
+
+ /* Only scissor affects blit, but we're doing to set a custom scissor if
+ * necessary anyway, so save/clear state.
+ */
+ _mesa_meta_begin(ctx, MESA_META_ALL);
+
+ /* If the clipping earlier changed the destination rect at all, then
+ * enable the scissor to clip to it.
+ */
+ if (clip.dstX0 != dstX0 || clip.dstY0 != dstY0 ||
+ clip.dstX1 != dstX1 || clip.dstY1 != dstY1) {
+ _mesa_set_enable(ctx, GL_SCISSOR_TEST, GL_TRUE);
+ _mesa_Scissor(MIN2(clip.dstX0, clip.dstX1),
+ MIN2(clip.dstY0, clip.dstY1),
+ abs(clip.dstX0 - clip.dstX1),
+ abs(clip.dstY0 - clip.dstY1));
+ }
/* Try faster, direct texture approach first */
if (mask & GL_COLOR_BUFFER_BIT) {