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-rw-r--r--src/mesa/drivers/dri/nouveau/nv20_state.c21
1 files changed, 17 insertions, 4 deletions
diff --git a/src/mesa/drivers/dri/nouveau/nv20_state.c b/src/mesa/drivers/dri/nouveau/nv20_state.c
index 030713c0db..3d8d83a865 100644
--- a/src/mesa/drivers/dri/nouveau/nv20_state.c
+++ b/src/mesa/drivers/dri/nouveau/nv20_state.c
@@ -78,7 +78,18 @@ static void nv20BlendFuncSeparate(GLcontext *ctx, GLenum sfactorRGB, GLenum dfac
static void nv20Clear(GLcontext *ctx, GLbitfield mask)
{
- /* TODO */
+ nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);
+ GLuint hw_bufs = 0;
+
+ if (mask & (BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT))
+ hw_bufs |= 0xf0;
+ if (mask & (BUFFER_BIT_DEPTH))
+ hw_bufs |= 0x03;
+
+ if (hw_bufs) {
+ BEGIN_RING_CACHE(NvSub3D, NV30_TCL_PRIMITIVE_3D_CLEAR_WHICH_BUFFERS, 1);
+ OUT_RING_CACHE(hw_bufs);
+ }
}
static void nv20ClearColor(GLcontext *ctx, const GLfloat color[4])
@@ -557,9 +568,11 @@ static void nv20Scissor(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h)
y += nmesa->drawY;
}
- BEGIN_RING_CACHE(NvSub3D, NV20_TCL_PRIMITIVE_3D_SCISSOR_X2_X1, 2);
- OUT_RING_CACHE(((x+w-1) << 16) | x);
- OUT_RING_CACHE(((y+h-1) << 16) | y);
+ BEGIN_RING_CACHE(NvSub3D, NV20_TCL_PRIMITIVE_3D_SCISSOR_X2_X1, 1);
+ OUT_RING_CACHE((w << 16) | x );
+ BEGIN_RING_CACHE(NvSub3D, NV20_TCL_PRIMITIVE_3D_SCISSOR_Y2_Y1, 1);
+ OUT_RING_CACHE((h << 16) | y );
+
}
/** Select flat or smooth shading */