Undo some prev glDraw/CopyPixel changes which fixed a bug in which colors were overwritten by interpolating attributes.

Now just set the span->arrayAttribs mask in glDraw/CopyPixels and be sure
we don't overwrite the values in interpolate_active_attribs().

1 files changed, 4 insertions, 11 deletions

diff --git a/src/mesa/swrast/s_drawpix.c b/src/mesa/swrast/s_drawpix.c
index 925358d77e..b5388745ba 100644
--- a/src/mesa/swrast/s_drawpix.c
+++ b/src/mesa/swrast/s_drawpix.c
@@ -532,25 +532,21 @@ draw_rgba_pixels( GLcontext *ctx, GLint x, GLint y,
                   const struct gl_pixelstore_attrib *unpack,
                   const GLvoid *pixels )
 {
-   SWcontext *swrast = SWRAST_CONTEXT(ctx);
-   const GLbitfield prevActiveAttribs = swrast->_ActiveAttribMask;
    const GLint imgX = x, imgY = y;
    const GLboolean zoom = ctx->Pixel.ZoomX!=1.0 || ctx->Pixel.ZoomY!=1.0;
    GLfloat *convImage = NULL;
    GLbitfield transferOps = ctx->_ImageTransferState;
    SWspan span;
 
-   /* don't interpolate COL0 and overwrite the glDrawPixel colors! */
-   swrast->_ActiveAttribMask &= ~FRAG_BIT_COL0;
-
    /* Try an optimized glDrawPixels first */
    if (fast_draw_rgba_pixels(ctx, x, y, width, height, format, type,
                              unpack, pixels)) {
-      goto end;
+      return;
    }
 
    INIT_SPAN(span, GL_BITMAP, 0, 0x0, SPAN_RGBA);
    _swrast_span_default_attribs(ctx, &span);
+   span.arrayAttribs = FRAG_BIT_COL0; /* we're fill in COL0 attrib values */
 
    if (ctx->Pixel.Convolution2DEnabled || ctx->Pixel.Separable2DEnabled) {
       /* Convolution has to be handled specially.  We'll create an
@@ -565,13 +561,13 @@ draw_rgba_pixels( GLcontext *ctx, GLint x, GLint y,
       tmpImage = (GLfloat *) _mesa_malloc(width * height * 4 * sizeof(GLfloat));
       if (!tmpImage) {
          _mesa_error(ctx, GL_OUT_OF_MEMORY, "glDrawPixels");
-         goto end;
+         return;
       }
       convImage = (GLfloat *) _mesa_malloc(width * height * 4 * sizeof(GLfloat));
       if (!convImage) {
          _mesa_free(tmpImage);
          _mesa_error(ctx, GL_OUT_OF_MEMORY, "glDrawPixels");
-         goto end;
+         return;
       }
 
       /* Unpack the image and apply transfer ops up to convolution */
@@ -675,9 +671,6 @@ draw_rgba_pixels( GLcontext *ctx, GLint x, GLint y,
    if (convImage) {
       _mesa_free(convImage);
    }
-
-end:
-   swrast->_ActiveAttribMask = prevActiveAttribs;
 }