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Merge pull request #8 from JayFoxRox/clear-masks 

Clear masks
This commit is contained in:
espes 2015-07-14 02:09:29 +10:00
parent 213767cee5 a753f3d06c
commit 23c9ee9517
1 changed files with 45 additions and 17 deletions
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62
hw/xbox/nv2a.c
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@ -4411,15 +4411,49 @@ static void pgraph_method(NV2AState *d,
case NV097_CLEAR_SURFACE:
NV2A_DPRINTF("---------PRE CLEAR ------\n");
GLbitfield gl_mask = 0;
if (parameter & NV097_CLEAR_SURFACE_Z) {
gl_mask |= GL_DEPTH_BUFFER_BIT;
}
if (parameter & NV097_CLEAR_SURFACE_STENCIL) {
gl_mask |= GL_STENCIL_BUFFER_BIT;
}
if (parameter & (NV097_CLEAR_SURFACE_COLOR)) {
gl_mask |= GL_COLOR_BUFFER_BIT;
bool write_color = (parameter & NV097_CLEAR_SURFACE_COLOR);
bool write_zeta =
(parameter & (NV097_CLEAR_SURFACE_Z | NV097_CLEAR_SURFACE_STENCIL));
if (write_zeta) {
uint32_t clear_zstencil =
d->pgraph.regs[NV_PGRAPH_ZSTENCILCLEARVALUE];
GLint gl_clear_stencil;
GLdouble gl_clear_depth;
switch(pg->surface_shape.zeta_format) {
case NV097_SET_SURFACE_FORMAT_ZETA_Z16:
/* FIXME: Remove bit for stencil clear? */
gl_clear_depth = (clear_zstencil & 0xFFFF) / (double)0xFFFF;
break;
case NV097_SET_SURFACE_FORMAT_ZETA_Z24S8:
gl_clear_stencil = clear_zstencil & 0xFF;
gl_clear_depth = (clear_zstencil >> 8) / (double)0xFFFFFF;
break;
default:
assert(0);
}
if (parameter & NV097_CLEAR_SURFACE_Z) {
gl_mask |= GL_DEPTH_BUFFER_BIT;
glDepthMask(GL_TRUE);
glClearDepth(gl_clear_depth);
}
if (parameter & NV097_CLEAR_SURFACE_STENCIL) {
gl_mask |= GL_STENCIL_BUFFER_BIT;
glStencilMask(0xff);
glClearStencil(gl_clear_stencil);
}
}
if (write_color) {
gl_mask |= GL_COLOR_BUFFER_BIT;
glColorMask((parameter & NV097_CLEAR_SURFACE_R)
? GL_TRUE : GL_FALSE,
(parameter & NV097_CLEAR_SURFACE_G)
? GL_TRUE : GL_FALSE,
(parameter & NV097_CLEAR_SURFACE_B)
? GL_TRUE : GL_FALSE,
(parameter & NV097_CLEAR_SURFACE_A)
? GL_TRUE : GL_FALSE);
uint32_t clear_color = d->pgraph.regs[NV_PGRAPH_COLORCLEARVALUE];
glClearColor( ((clear_color >> 16) & 0xFF) / 255.0f, /* red */
((clear_color >> 8) & 0xFF) / 255.0f, /* green */
@ -4427,15 +4461,8 @@ static void pgraph_method(NV2AState *d,
((clear_color >> 24) & 0xFF) / 255.0f);/* alpha */
}
bool write_color = (parameter & NV097_CLEAR_SURFACE_COLOR);
bool write_zeta =
(parameter & (NV097_CLEAR_SURFACE_Z | NV097_CLEAR_SURFACE_STENCIL));
pgraph_update_surface(d, true, write_color, write_zeta);
glColorMask(true, true, true, true);
glDepthMask(true);
glStencilMask(0xff);
glEnable(GL_SCISSOR_TEST);
unsigned int xmin = GET_MASK(pg->regs[NV_PGRAPH_CLEARRECTX],
@ -4446,8 +4473,9 @@ static void pgraph_method(NV2AState *d,
NV_PGRAPH_CLEARRECTY_YMIN);
unsigned int ymax = GET_MASK(pg->regs[NV_PGRAPH_CLEARRECTY],
NV_PGRAPH_CLEARRECTY_YMAX);
glScissor(xmin, pg->surface_shape.clip_height-ymax,
xmax-xmin, ymax-ymin);
/* FIXME: Maybe "pg->surface_shape.clip_height-ymax" instead of ymin? */
glScissor(xmin, ymin, xmax-xmin+1, ymax-ymin+1);
NV2A_DPRINTF("------------------CLEAR 0x%x %d,%d - %d,%d %x---------------\n",
parameter, xmin, ymin, xmax, ymax, d->pgraph.regs[NV_PGRAPH_COLORCLEARVALUE]);