From: Patrice Mandin <pmandin@caramail.com>
Date: Thu, 16 Aug 2007 19:50:34 +0000 (+0200)
Subject: nouveau: nv10: clear a buffer
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b902a223c461c804cee5cabd6440a934835803bd;p=mesa.git

nouveau: nv10: clear a buffer
---

diff --git a/src/mesa/drivers/dri/nouveau/nv10_state.c b/src/mesa/drivers/dri/nouveau/nv10_state.c
index 0c746325c6f..4a3646ea4f1 100644
--- a/src/mesa/drivers/dri/nouveau/nv10_state.c
+++ b/src/mesa/drivers/dri/nouveau/nv10_state.c
@@ -114,12 +114,35 @@ static void nv10BlendFuncSeparate(GLcontext *ctx, GLenum sfactorRGB, GLenum dfac
 static void nv10ClearBuffer(GLcontext *ctx, nouveau_renderbuffer_t *buffer, int fill, int mask)
 {
 	nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);
+	int dimensions;
 
 	if (!buffer) {
 		return;
 	}
 
-	/* TODO */
+	/* Surface that we will work on */
+	nouveauObjectOnSubchannel(nmesa, NvSubCtxSurf2D, NvCtxSurf2D);
+
+	BEGIN_RING_SIZE(NvSubCtxSurf2D, NV10_CONTEXT_SURFACES_2D_FORMAT, 4);
+	OUT_RING(0x0b); /* Y32 color format */
+	OUT_RING((buffer->pitch<<16)|buffer->pitch);
+	OUT_RING(buffer->offset);
+	OUT_RING(buffer->offset);
+
+	/* Now clear a rectangle */
+	dimensions = ((buffer->mesa.Height)<<16) | (buffer->mesa.Width);
+
+	nouveauObjectOnSubchannel(nmesa, NvSubGdiRectText, NvGdiRectText);
+
+	BEGIN_RING_SIZE(NvSubGdiRectText, NV04_GDI_RECTANGLE_TEXT_OPERATION, 1);
+	OUT_RING(3);	/* SRCCOPY */
+
+	BEGIN_RING_SIZE(NvSubGdiRectText, NV04_GDI_RECTANGLE_TEXT_BLOCK_LEVEL1_TL, 5);
+	OUT_RING(0);	/* top left */
+	OUT_RING(dimensions);	/* bottom right */
+	OUT_RING(fill);
+	OUT_RING(0);	/* top left */
+	OUT_RING(dimensions);	/* bottom right */
 }
 
 static void nv10Clear(GLcontext *ctx, GLbitfield mask)