nouveau: nv10: add function to clear a buffer

diff --git a/src/mesa/drivers/dri/nouveau/nv10_state.c b/src/mesa/drivers/dri/nouveau/nv10_state.c
index 2183fc1577c78c49d36552610947ba7aa190f359..0c746325c6fa0611dc71fd0f402ab655194d2a9f 100644 (file)
--- a/src/mesa/drivers/dri/nouveau/nv10_state.c
+++ b/src/mesa/drivers/dri/nouveau/nv10_state.c
@@ -111,11 +111,41 @@ static void nv10BlendFuncSeparate(GLcontext *ctx, GLenum sfactorRGB, GLenum dfac
        OUT_RING_CACHE(dfactorRGB);
 }
 
-static void nv10Clear(GLcontext *ctx, GLbitfield mask)
+static void nv10ClearBuffer(GLcontext *ctx, nouveau_renderbuffer_t *buffer, int fill, int mask)
 {
+       nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);
+
+       if (!buffer) {
+               return;
+       }
+
        /* TODO */
 }
 
+static void nv10Clear(GLcontext *ctx, GLbitfield mask)
+{
+       nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);
+
+       if (mask & (BUFFER_BIT_FRONT_LEFT)) {
+               nv10ClearBuffer(ctx, nmesa->color_buffer[0],
+                       nmesa->clear_color_value, 0xffffffff);
+       }
+       if (mask & (BUFFER_BIT_BACK_LEFT)) {
+               nv10ClearBuffer(ctx, nmesa->color_buffer[1],
+                       nmesa->clear_color_value, 0xffffffff);
+       }
+       /* FIXME: check depth bits */
+       if (mask & (BUFFER_BIT_DEPTH)) {
+               nv10ClearBuffer(ctx, nmesa->depth_buffer,
+                       nmesa->clear_value, 0xffffff00);
+       }
+       /* FIXME: check about stencil? */
+       if (mask & (BUFFER_BIT_STENCIL)) {
+               nv10ClearBuffer(ctx, nmesa->depth_buffer,
+                       nmesa->clear_value, 0x000000ff);
+       }
+}
+
 static void nv10ClearColor(GLcontext *ctx, const GLfloat color[4])
 {
        nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);