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fixed front/back buffer stride problem for XF86DRI

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This commit is contained in:
Brian Paul 2000-02-25 14:59:46 +00:00
parent eaba005f18
commit bb7e2e846c
1 changed files with 6 additions and 1 deletions
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7
src/mesa/drivers/glide/fxdd.c
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@ -446,8 +446,13 @@ static GLboolean fxDDDrawBitMap(GLcontext *ctx, GLint px, GLint py,
{
const GLint winX = fxMesa->x_offset;
const GLint winY = fxMesa->y_offset + fxMesa->height - 1;
/* The dest stride depends on the hardware and whether we're drawing
* to the front or back buffer. This compile-time test seems to do
* the job for now.
*/
#ifdef XF86DRI
const GLint dstStride = fxMesa->screen_width;
const GLint dstStride = (fxMesa->glCtx->Color.DrawBuffer == GL_FRONT)
? (fxMesa->screen_width) : (info.strideInBytes / 2);
#else
const GLint dstStride = info.strideInBytes / 2; /* stride in GLushorts */
#endif