diff options
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_pixel_draw.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_pixel_draw.c b/src/mesa/drivers/dri/intel/intel_pixel_draw.c index 50518a68792..4a2fbf3bc6b 100644 --- a/src/mesa/drivers/dri/intel/intel_pixel_draw.c +++ b/src/mesa/drivers/dri/intel/intel_pixel_draw.c @@ -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; |