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intel: Fix glDrawPixels with 4d RasterPos.

This commit is contained in:
Eric Anholt 2008-10-28 22:50:52 -07:00
parent 59b2c2adbb
commit 26c1c04fd0
1 changed files with 9 additions and 4 deletions
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13
src/mesa/drivers/dri/intel/intel_pixel_draw.c
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@ -141,22 +141,27 @@ intel_texture_drawpixels(GLcontext * ctx,
_mesa_PushMatrix();
_mesa_LoadIdentity();
/* Create the vertex buffer based on the current raster pos. The x and y
* we're handed are ctx->Current.RasterPos[0,1] rounded to integers.
* We also apply the depth. However, the W component is already multiplied
* into ctx->Current.RasterPos[0,1,2] and we can ignore it at this point.
*/
vertices[0][0] = x;
vertices[0][1] = y;
vertices[0][2] = ctx->Current.RasterPos[2];
vertices[0][3] = ctx->Current.RasterPos[3];
vertices[0][3] = 1.0;
vertices[1][0] = x + width * ctx->Pixel.ZoomX;
vertices[1][1] = y;
vertices[1][2] = ctx->Current.RasterPos[2];
vertices[1][3] = ctx->Current.RasterPos[3];
vertices[1][3] = 1.0;
vertices[2][0] = x + width * ctx->Pixel.ZoomX;
vertices[2][1] = y + height * ctx->Pixel.ZoomY;
vertices[2][2] = ctx->Current.RasterPos[2];
vertices[2][3] = ctx->Current.RasterPos[3];
vertices[2][3] = 1.0;
vertices[3][0] = x;
vertices[3][1] = y + height * ctx->Pixel.ZoomY;
vertices[3][2] = ctx->Current.RasterPos[2];
vertices[3][3] = ctx->Current.RasterPos[3];
vertices[3][3] = 1.0;
texcoords[0][0] = 0.0;
texcoords[0][1] = 0.0;