diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/Makefile | 1 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_buffers.c | 17 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_context.c | 4 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_context.h | 8 |
4 files changed, 29 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/Makefile b/src/mesa/drivers/dri/i965/Makefile index 2934414d99a..81c2fdb0dc6 100644 --- a/src/mesa/drivers/dri/i965/Makefile +++ b/src/mesa/drivers/dri/i965/Makefile @@ -22,6 +22,7 @@ DRIVER_SOURCES = \ intel_pixel_bitmap.c \ intel_pixel_copy.c \ intel_pixel_draw.c \ + intel_pixel_read.c \ intel_state.c \ intel_swapbuffers.c \ intel_tex.c \ diff --git a/src/mesa/drivers/dri/intel/intel_buffers.c b/src/mesa/drivers/dri/intel/intel_buffers.c index d2fad9e4ea1..44e34330a6b 100644 --- a/src/mesa/drivers/dri/intel/intel_buffers.c +++ b/src/mesa/drivers/dri/intel/intel_buffers.c @@ -345,6 +345,23 @@ intelDrawBuffer(GLcontext * ctx, GLenum mode) static void intelReadBuffer(GLcontext * ctx, GLenum mode) { + if ((ctx->DrawBuffer != NULL) && (ctx->DrawBuffer->Name == 0)) { + struct intel_context *const intel = intel_context(ctx); + const GLboolean was_front_buffer_reading = + intel->is_front_buffer_reading; + + intel->is_front_buffer_reading = (mode == GL_FRONT_LEFT) + || (mode == GL_FRONT); + + /* If we weren't front-buffer reading before but we are now, make sure + * that the front-buffer has actually been allocated. + */ + if (!was_front_buffer_reading && intel->is_front_buffer_reading) { + intel_update_renderbuffers(intel->driContext, + intel->driContext->driDrawablePriv); + } + } + if (ctx->ReadBuffer == ctx->DrawBuffer) { /* This will update FBO completeness status. * A framebuffer will be incomplete if the GL_READ_BUFFER setting diff --git a/src/mesa/drivers/dri/intel/intel_context.c b/src/mesa/drivers/dri/intel/intel_context.c index 50ae677d203..977fad93133 100644 --- a/src/mesa/drivers/dri/intel/intel_context.c +++ b/src/mesa/drivers/dri/intel/intel_context.c @@ -220,7 +220,9 @@ intel_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable) struct intel_renderbuffer *stencil_rb; i = 0; - if ((intel->is_front_buffer_rendering || !intel_fb->color_rb[1]) + if ((intel->is_front_buffer_rendering || + intel->is_front_buffer_reading || + !intel_fb->color_rb[1]) && intel_fb->color_rb[0]) { attachments[i++] = __DRI_BUFFER_FRONT_LEFT; attachments[i++] = intel_bits_per_pixel(intel_fb->color_rb[0]); diff --git a/src/mesa/drivers/dri/intel/intel_context.h b/src/mesa/drivers/dri/intel/intel_context.h index b3db561fd5b..e2b3943fb58 100644 --- a/src/mesa/drivers/dri/intel/intel_context.h +++ b/src/mesa/drivers/dri/intel/intel_context.h @@ -295,6 +295,14 @@ struct intel_context * easily. */ GLboolean is_front_buffer_rendering; + /** + * Track whether front-buffer is the current read target. + * + * This is closely associated with is_front_buffer_rendering, but may + * be set separately. The DRI2 fake front buffer must be referenced + * either way. + */ + GLboolean is_front_buffer_reading; drm_clip_rect_t fboRect; /**< cliprect for FBO rendering */ |