diff options
| -rw-r--r-- | src/mesa/main/framebuffer.c | 21 | ||||
| -rw-r--r-- | src/mesa/main/framebuffer.h | 5 |
2 files changed, 26 insertions, 0 deletions
diff --git a/src/mesa/main/framebuffer.c b/src/mesa/main/framebuffer.c index 13887f8f54b..8cbfbd6bcfb 100644 --- a/src/mesa/main/framebuffer.c +++ b/src/mesa/main/framebuffer.c @@ -42,6 +42,7 @@ #include "framebuffer.h" #include "renderbuffer.h" #include "texobj.h" +#include "glformats.h" @@ -899,6 +900,26 @@ _mesa_get_color_read_type(struct gl_context *ctx) /** + * Returns the read renderbuffer for the specified format. + */ +struct gl_renderbuffer * +_mesa_get_read_renderbuffer_for_format(struct gl_context *ctx, + GLenum format) +{ + struct gl_framebuffer *rfb = ctx->ReadBuffer; + + if (_mesa_is_color_format(format)) { + return rfb->Attachment[rfb->_ColorReadBufferIndex].Renderbuffer; + } else if (_mesa_is_depth_format(format) || + _mesa_is_depthstencil_format(format)) { + return rfb->Attachment[BUFFER_DEPTH].Renderbuffer; + } else { + return rfb->Attachment[BUFFER_STENCIL].Renderbuffer; + } +} + + +/** * Print framebuffer info to stderr, for debugging. */ void diff --git a/src/mesa/main/framebuffer.h b/src/mesa/main/framebuffer.h index ad53d8cbeb0..06db0492544 100644 --- a/src/mesa/main/framebuffer.h +++ b/src/mesa/main/framebuffer.h @@ -30,6 +30,7 @@ struct gl_config; struct gl_context; +struct gl_renderbuffer; extern struct gl_framebuffer * _mesa_create_framebuffer(const struct gl_config *visual); @@ -96,6 +97,10 @@ _mesa_get_color_read_type(struct gl_context *ctx); extern GLenum _mesa_get_color_read_format(struct gl_context *ctx); +extern struct gl_renderbuffer * +_mesa_get_read_renderbuffer_for_format(struct gl_context *ctx, + GLenum format); + extern void _mesa_print_framebuffer(const struct gl_framebuffer *fb); |