mesa: Move RasterDiscard to toplevel of gl_context.

Previously we were storing the RasterDiscard flag (for
GL_RASTERIZER_DISCARD) in gl_context::TransformFeedback.  This was
confusing, because we use the _NEW_TRANSFORM flag (not
_NEW_TRANSFORM_FEEDBACK) to track state updates to it, and because
rasterizer discard has effects even when transform feedback is not in
use.

This patch makes RasterDiscard a toplevel element in gl_context rather
than a subfield of gl_context::TransformFeedback.

Note: We can't put RasterDiscard inside gl_context::Transform, since
all items inside gl_context::Transform need to be pieces of state that
are saved and restored using PushAttrib and PopAttrib.

Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>

1 files changed, 7 insertions, 7 deletions

diff --git a/src/mesa/main/clear.c b/src/mesa/main/clear.c
index 2e27c951bbb..bd5c012245a 100644
--- a/src/mesa/main/clear.c
+++ b/src/mesa/main/clear.c
@@ -200,7 +200,7 @@ _mesa_Clear( GLbitfield mask )
        ctx->DrawBuffer->_Ymin >= ctx->DrawBuffer->_Ymax)
       return;
 
-   if (ctx->TransformFeedback.RasterDiscard)
+   if (ctx->RasterDiscard)
       return;
 
    if (ctx->RenderMode == GL_RENDER) {
@@ -338,7 +338,7 @@ _mesa_ClearBufferiv(GLenum buffer, GLint drawbuffer, const GLint *value)
                      drawbuffer);
          return;
       }
-      else if (!ctx->TransformFeedback.RasterDiscard) {
+      else if (!ctx->RasterDiscard) {
          /* Save current stencil clear value, set to 'value', do the
           * stencil clear and restore the clear value.
           * XXX in the future we may have a new ctx->Driver.ClearBuffer()
@@ -362,7 +362,7 @@ _mesa_ClearBufferiv(GLenum buffer, GLint drawbuffer, const GLint *value)
                         drawbuffer);
             return;
          }
-         else if (mask && !ctx->TransformFeedback.RasterDiscard) {
+         else if (mask && !ctx->RasterDiscard) {
             union gl_color_union clearSave;
 
             /* save color */
@@ -432,7 +432,7 @@ _mesa_ClearBufferuiv(GLenum buffer, GLint drawbuffer, const GLuint *value)
                         drawbuffer);
             return;
          }
-         else if (mask && !ctx->TransformFeedback.RasterDiscard) {
+         else if (mask && !ctx->RasterDiscard) {
             union gl_color_union clearSave;
 
             /* save color */
@@ -513,7 +513,7 @@ _mesa_ClearBufferfv(GLenum buffer, GLint drawbuffer, const GLfloat *value)
                      drawbuffer);
          return;
       }
-      else if (!ctx->TransformFeedback.RasterDiscard) {
+      else if (!ctx->RasterDiscard) {
          /* Save current depth clear value, set to 'value', do the
           * depth clear and restore the clear value.
           * XXX in the future we may have a new ctx->Driver.ClearBuffer()
@@ -538,7 +538,7 @@ _mesa_ClearBufferfv(GLenum buffer, GLint drawbuffer, const GLfloat *value)
                         drawbuffer);
             return;
          }
-         else if (mask && !ctx->TransformFeedback.RasterDiscard) {
+         else if (mask && !ctx->RasterDiscard) {
             union gl_color_union clearSave;
 
             /* save color */
@@ -615,7 +615,7 @@ _mesa_ClearBufferfi(GLenum buffer, GLint drawbuffer,
       return;
    }
 
-   if (ctx->TransformFeedback.RasterDiscard)
+   if (ctx->RasterDiscard)
       return;
 
    if (ctx->NewState) {