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authorFritz Koenig <[email protected]>2018-07-23 10:10:54 -0700
committerChad Versace <[email protected]>2018-07-27 12:32:25 -0700
commit318c265160ed33a2d9f7d664e1b247cbbc38203f (patch)
tree161a55c710b3e7764602afe676a58d75e5f44a8c /src/mesa/state_tracker
parent7953399e599862769bc29f5f98322adbcf6c3951 (diff)
mesa: GL_MESA_framebuffer_flip_y extension [v4]
Adds an extension to glFramebufferParameteri that will specify if the framebuffer is vertically flipped. Historically system framebuffers are vertically flipped and user framebuffers are not. Checking to see the state was done by looking at the name field. This adds an explicit field. v2: * updated spec language [for chadv] * correctly specifying ES 3.1 [for chadv] * refactor access to rb->Name [for jason] * handle GetFramebufferParameteriv [for chadv] v3: * correct _mesa_GetMultisamplefv [for kusmabite] v4: * update spec language [for chadv] * s/GLboolean/bool/g [for chadv] * s/InvertedY/FlipY/g [for chadv] * s/inverted_y/flip_y/g [for chadv] * assert changes [for chadv] Reviewed-by: Chad Versace <[email protected]>
Diffstat (limited to 'src/mesa/state_tracker')
-rw-r--r--src/mesa/state_tracker/st_cb_fbo.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/mesa/state_tracker/st_cb_fbo.c b/src/mesa/state_tracker/st_cb_fbo.c
index b851db64886..698c7046c1a 100644
--- a/src/mesa/state_tracker/st_cb_fbo.c
+++ b/src/mesa/state_tracker/st_cb_fbo.c
@@ -770,7 +770,8 @@ st_MapRenderbuffer(struct gl_context *ctx,
struct gl_renderbuffer *rb,
GLuint x, GLuint y, GLuint w, GLuint h,
GLbitfield mode,
- GLubyte **mapOut, GLint *rowStrideOut)
+ GLubyte **mapOut, GLint *rowStrideOut,
+ bool flip_y)
{
struct st_context *st = st_context(ctx);
struct st_renderbuffer *strb = st_renderbuffer(rb);
@@ -779,6 +780,9 @@ st_MapRenderbuffer(struct gl_context *ctx,
GLuint y2;
GLubyte *map;
+ /* driver does not support GL_FRAMEBUFFER_FLIP_Y_MESA */
+ assert((rb->Name == 0) == flip_y);
+
if (strb->software) {
/* software-allocated renderbuffer (probably an accum buffer) */
if (strb->data) {