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nouveau: nv10: set clear value for 16 and 24 bits depth

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This commit is contained in:
Patrice Mandin 2007-02-16 20:26:57 +01:00
parent 9131536f00
commit f942dc5522
1 changed files with 15 additions and 4 deletions
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19
src/mesa/drivers/dri/nouveau/nv10_state.c
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@ -121,16 +121,27 @@ static void nv10ClearColor(GLcontext *ctx, const GLfloat color[4])
static void nv10ClearDepth(GLcontext *ctx, GLclampd d)
{
/* FIXME: check if 16 or 24/32 bits depth buffer */
nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);
nmesa->clear_value=((nmesa->clear_value&0x000000FF)|(((uint32_t)(d*0xFFFFFF))<<8));
switch (ctx->DrawBuffer->_DepthBuffer->DepthBits) {
case 16:
nmesa->clear_value = (uint32_t)(d*0x7FFF);
break;
case 24:
nmesa->clear_value = ((nmesa->clear_value&0x000000FF) |
(((uint32_t)(d*0xFFFFFF))<<8));
break;
}
}
static void nv10ClearStencil(GLcontext *ctx, GLint s)
{
/* FIXME: not valid for 16 bits depth buffer (0 stencil bits) */
nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);
nmesa->clear_value=((nmesa->clear_value&0xFFFFFF00)|(s&0x000000FF));
if (ctx->DrawBuffer->_DepthBuffer->DepthBits == 24) {
nmesa->clear_value = ((nmesa->clear_value&0xFFFFFF00)|
(s&0x000000FF));
}
}
static void nv10ClipPlane(GLcontext *ctx, GLenum plane, const GLfloat *equation)