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path: root/src/mesa/swrast/s_drawpix.c
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Diffstat (limited to 'src/mesa/swrast/s_drawpix.c')
-rw-r--r--src/mesa/swrast/s_drawpix.c47
1 files changed, 0 insertions, 47 deletions
diff --git a/src/mesa/swrast/s_drawpix.c b/src/mesa/swrast/s_drawpix.c
index 00cc5e83c0..74c820c43b 100644
--- a/src/mesa/swrast/s_drawpix.c
+++ b/src/mesa/swrast/s_drawpix.c
@@ -40,53 +40,6 @@
#include "s_zoom.h"
-
-/*
- * Given the dest position, size and skipPixels and skipRows values
- * for a glDrawPixels command, perform clipping of the image bounds
- * so the result lies withing the context's buffer bounds.
- * Return: GL_TRUE if image is ready for drawing
- * GL_FALSE if image was completely clipped away (draw nothing)
- */
-GLboolean
-_swrast_clip_pixelrect(const GLcontext *ctx,
- GLint *destX, GLint *destY,
- GLsizei *width, GLsizei *height,
- GLint *skipPixels, GLint *skipRows)
-{
- const GLframebuffer *buffer = ctx->DrawBuffer;
-
- /* left clipping */
- if (*destX < buffer->_Xmin) {
- *skipPixels += (buffer->_Xmin - *destX);
- *width -= (buffer->_Xmin - *destX);
- *destX = buffer->_Xmin;
- }
- /* right clipping */
- if (*destX + *width > buffer->_Xmax)
- *width -= (*destX + *width - buffer->_Xmax);
-
- if (*width <= 0)
- return GL_FALSE;
-
- /* bottom clipping */
- if (*destY < buffer->_Ymin) {
- *skipRows += (buffer->_Ymin - *destY);
- *height -= (buffer->_Ymin - *destY);
- *destY = buffer->_Ymin;
- }
- /* top clipping */
- if (*destY + *height > buffer->_Ymax)
- *height -= (*destY + *height - buffer->_Ymax);
-
- if (*height <= 0)
- return GL_TRUE;
-
- return GL_TRUE;
-}
-
-
-
/*
* Try to do a fast and simple RGB(a) glDrawPixels.
* Return: GL_TRUE if success, GL_FALSE if slow path must be used instead