void
nouveau_clear(GLcontext *ctx, GLbitfield buffers)
{
struct gl_framebuffer *fb = ctx->DrawBuffer;
int x, y, w, h;
int i, buf;
nouveau_validate_framebuffer(ctx);
get_scissors(fb, &x, &y, &w, &h);
for (i = 0; i < BUFFER_COUNT; i++) {
struct nouveau_surface *s;
unsigned mask, value;
buf = buffers & (1 << i);
if (!buf)
continue;
s = &to_nouveau_renderbuffer(
fb->Attachment[i].Renderbuffer->Wrapped)->surface;
if (buf & BUFFER_BITS_COLOR) {
mask = pack_rgba_i(s->format, ctx->Color.ColorMask[0]);
value = pack_rgba_f(s->format, ctx->Color.ClearColor);
if (mask)
context_drv(ctx)->surface_fill(
ctx, s, mask, value, x, y, w, h);
buffers &= ~buf;
} else if (buf & (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL)) {
mask = pack_zs_i(s->format,
(buffers & BUFFER_BIT_DEPTH &&
ctx->Depth.Mask) ? ~0 : 0,
(buffers & BUFFER_BIT_STENCIL ?
ctx->Stencil.WriteMask[0] : 0));
value = pack_zs_f(s->format,
ctx->Depth.Clear,
ctx->Stencil.Clear);
if (mask)
context_drv(ctx)->surface_fill(
ctx, s, mask, value, x, y, w, h);
buffers &= ~(BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL);
}
}
if (buffers)
_mesa_meta_Clear(ctx, buffers);
}
void
nouveau_clear(struct gl_context *ctx, GLbitfield buffers)
{
struct gl_framebuffer *fb = ctx->DrawBuffer;
int x, y, w, h;
int i, buf;
nouveau_validate_framebuffer(ctx);
get_scissors(fb, &x, &y, &w, &h);
for (i = 0; i < BUFFER_COUNT; i++) {
struct nouveau_surface *s;
unsigned mask, value;
buf = buffers & (1 << i);
if (!buf)
continue;
s = &to_nouveau_renderbuffer(
fb->Attachment[i].Renderbuffer)->surface;
if (buf & BUFFER_BITS_COLOR) {
const float *color = ctx->Color.ClearColor.f;
if (fb->Attachment[i].Renderbuffer->_BaseFormat ==
GL_LUMINANCE_ALPHA)
value = pack_la_clamp_f(
s->format, color[0], color[3]);
else
value = pack_rgba_clamp_f(s->format, color);
const uint8_t colormask[4] = {
GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 0) ? 0xff : 0,
GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 1) ? 0xff : 0,
GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 2) ? 0xff : 0,
GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 3) ? 0xff : 0,
};
mask = pack_rgba_i(s->format, colormask);
if (mask)
context_drv(ctx)->surface_fill(
ctx, s, mask, value, x, y, w, h);
buffers &= ~buf;
} else if (buf & (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL)) {
mask = pack_zs_i(s->format,
(buffers & BUFFER_BIT_DEPTH &&
ctx->Depth.Mask) ? ~0 : 0,
(buffers & BUFFER_BIT_STENCIL ?
ctx->Stencil.WriteMask[0] : 0));
value = pack_zs_f(s->format,
ctx->Depth.Clear,
ctx->Stencil.Clear);
if (mask)
context_drv(ctx)->surface_fill(
ctx, s, mask, value, x, y, w, h);
buffers &= ~(BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL);
}
}
if (buffers)
_mesa_meta_Clear(ctx, buffers);
}
