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/*
* Copyright (C) 2009 Francisco Jerez.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include "nouveau_driver.h"
#include "nouveau_context.h"
#include "nouveau_fbo.h"
#include "nouveau_util.h"
#include "nouveau_class.h"
#include "nv04_driver.h"
static inline unsigned
get_rt_format(gl_format format)
{
switch (format) {
case MESA_FORMAT_XRGB8888:
return 0x05;
case MESA_FORMAT_ARGB8888:
return 0x08;
case MESA_FORMAT_RGB565:
return 0x03;
default:
assert(0);
}
}
void
nv04_emit_framebuffer(GLcontext *ctx, int emit)
{
struct nouveau_channel *chan = context_chan(ctx);
struct nouveau_hw_state *hw = &to_nouveau_context(ctx)->hw;
struct nouveau_grobj *surf3d = hw->surf3d;
struct nouveau_bo_context *bctx = context_bctx(ctx, FRAMEBUFFER);
struct gl_framebuffer *fb = ctx->DrawBuffer;
struct nouveau_surface *s;
uint32_t rt_format = NV04_CONTEXT_SURFACES_3D_FORMAT_TYPE_PITCH;
uint32_t rt_pitch = 0, zeta_pitch = 0;
unsigned bo_flags = NOUVEAU_BO_VRAM | NOUVEAU_BO_RDWR;
if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT)
return;
/* Render target */
if (fb->_ColorDrawBuffers[0]) {
s = &to_nouveau_renderbuffer(
fb->_ColorDrawBuffers[0])->surface;
rt_format |= get_rt_format(s->format);
zeta_pitch = rt_pitch = s->pitch;
nouveau_bo_markl(bctx, surf3d,
NV04_CONTEXT_SURFACES_3D_OFFSET_COLOR,
s->bo, 0, bo_flags);
}
/* depth/stencil */
if (fb->_DepthBuffer) {
s = &to_nouveau_renderbuffer(
fb->_DepthBuffer->Wrapped)->surface;
zeta_pitch = s->pitch;
nouveau_bo_markl(bctx, surf3d,
NV04_CONTEXT_SURFACES_3D_OFFSET_ZETA,
s->bo, 0, bo_flags);
}
BEGIN_RING(chan, surf3d, NV04_CONTEXT_SURFACES_3D_FORMAT, 1);
OUT_RING(chan, rt_format);
BEGIN_RING(chan, surf3d, NV04_CONTEXT_SURFACES_3D_PITCH, 1);
OUT_RING(chan, zeta_pitch << 16 | rt_pitch);
/* Recompute the scissor state. */
context_dirty(ctx, SCISSOR);
}
void
nv04_emit_scissor(GLcontext *ctx, int emit)
{
struct nouveau_channel *chan = context_chan(ctx);
struct nouveau_hw_state *hw = &to_nouveau_context(ctx)->hw;
struct nouveau_grobj *surf3d = hw->surf3d;
int x, y, w, h;
get_scissors(ctx->DrawBuffer, &x, &y, &w, &h);
BEGIN_RING(chan, surf3d, NV04_CONTEXT_SURFACES_3D_CLIP_HORIZONTAL, 2);
OUT_RING(chan, w << 16 | x);
OUT_RING(chan, h << 16 | y);
/* Messing with surf3d invalidates the engine state. */
context_dirty_i(ctx, TEX_ENV, 0);
context_dirty_i(ctx, TEX_ENV, 1);
context_dirty_i(ctx, TEX_OBJ, 0);
context_dirty_i(ctx, TEX_OBJ, 1);
context_dirty(ctx, CONTROL);
context_dirty(ctx, BLEND);
}
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