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authorBrian Paul <brian.paul@tungstengraphics.com>2002-06-15 02:38:15 +0000
committerBrian Paul <brian.paul@tungstengraphics.com>2002-06-15 02:38:15 +0000
commit4753d60dd070bb08d0116076bcc08025c86ce857 (patch)
treeb1516c35acfa41ae17d575b92b8c776bd530297a /src/mesa/main/drawpix.c
parent5e54ddc3a69df060c3ca2acbdd45247e30c947d6 (diff)
Added ctx parameter to _mesa_debug()
Added _mesa_printf() Updated SetDrawBuffer() function in all drivers (ala 4.0.3) Import 4.0.3/DRI changes.
Diffstat (limited to 'src/mesa/main/drawpix.c')
-rw-r--r--src/mesa/main/drawpix.c67
1 files changed, 66 insertions, 1 deletions
diff --git a/src/mesa/main/drawpix.c b/src/mesa/main/drawpix.c
index 1c37f5b9a2..edad15b3e7 100644
--- a/src/mesa/main/drawpix.c
+++ b/src/mesa/main/drawpix.c
@@ -1,4 +1,4 @@
-/* $Id: drawpix.c,v 1.60 2002/05/09 21:54:16 brianp Exp $ */
+/* $Id: drawpix.c,v 1.61 2002/06/15 02:38:15 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -223,3 +223,68 @@ _mesa_Bitmap( GLsizei width, GLsizei height,
ctx->Current.RasterPos[0] += xmove;
ctx->Current.RasterPos[1] += ymove;
}
+
+
+
+#if 0 /* experimental */
+/*
+ * Execute glDrawDepthPixelsMESA(). This function accepts both a color
+ * image and depth (Z) image. Rasterization produces fragments with
+ * color and Z taken from these images. This function is intended for
+ * Z-compositing. Normally, this operation requires two glDrawPixels
+ * calls with stencil testing.
+ */
+void
+_mesa_DrawDepthPixelsMESA( GLsizei width, GLsizei height,
+ GLenum colorFormat, GLenum colorType,
+ const GLvoid *colors,
+ GLenum depthType, const GLvoid *depths )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (width < 0 || height < 0) {
+ _mesa_error( ctx, GL_INVALID_VALUE,
+ "glDrawDepthPixelsMESA(width or height < 0" );
+ return;
+ }
+
+ if (ctx->RenderMode==GL_RENDER) {
+ GLint x, y;
+ if (!colors || !depths || !ctx->Current.RasterPosValid) {
+ return;
+ }
+
+ if (ctx->NewState) {
+ _mesa_update_state(ctx);
+ }
+
+ /* Round, to satisfy conformance tests (matches SGI's OpenGL) */
+ x = IROUND(ctx->Current.RasterPos[0]);
+ y = IROUND(ctx->Current.RasterPos[1]);
+
+ ctx->OcclusionResult = GL_TRUE;
+ ctx->Driver.DrawDepthPixelsMESA(ctx, x, y, width, height,
+ colorFormat, colorType, colors,
+ depthType, depths, &ctx->Unpack);
+ }
+ else if (ctx->RenderMode==GL_FEEDBACK) {
+ /* Feedback the current raster pos info */
+ if (ctx->Current.RasterPosValid) {
+ FLUSH_CURRENT( ctx, 0 );
+ FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_DRAW_PIXEL_TOKEN );
+ _mesa_feedback_vertex( ctx,
+ ctx->Current.RasterPos,
+ ctx->Current.RasterColor,
+ ctx->Current.RasterIndex,
+ ctx->Current.RasterTexCoords[0] );
+ }
+ }
+ else if (ctx->RenderMode==GL_SELECT) {
+ if (ctx->Current.RasterPosValid) {
+ _mesa_update_hitflag( ctx, ctx->Current.RasterPos[2] );
+ }
+ }
+}
+
+#endif