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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_gldefs.h"
#include "nouveau_util.h"
#include "nouveau_class.h"
#include "nv20_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;
case MESA_FORMAT_Z16:
return 0x10;
case MESA_FORMAT_Z24_S8:
return 0x20;
default:
assert(0);
}
}
void
nv20_emit_framebuffer(GLcontext *ctx, int emit)
{
struct nouveau_channel *chan = context_chan(ctx);
struct nouveau_grobj *kelvin = context_eng3d(ctx);
struct nouveau_bo_context *bctx = context_bctx(ctx, FRAMEBUFFER);
struct gl_framebuffer *fb = ctx->DrawBuffer;
struct nouveau_surface *s;
unsigned rt_format = NV20TCL_RT_FORMAT_TYPE_LINEAR;
unsigned 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);
rt_pitch = s->pitch;
nouveau_bo_markl(bctx, kelvin, NV20TCL_COLOR_OFFSET,
s->bo, 0, bo_flags);
}
/* depth/stencil */
if (fb->_DepthBuffer) {
s = &to_nouveau_renderbuffer(
fb->_DepthBuffer->Wrapped)->surface;
rt_format |= get_rt_format(s->format);
zeta_pitch = s->pitch;
nouveau_bo_markl(bctx, kelvin, NV20TCL_ZETA_OFFSET,
s->bo, 0, bo_flags);
} else {
rt_format |= get_rt_format(MESA_FORMAT_Z24_S8);
zeta_pitch = rt_pitch;
}
BEGIN_RING(chan, kelvin, NV20TCL_RT_FORMAT, 2);
OUT_RING(chan, rt_format);
OUT_RING(chan, zeta_pitch << 16 | rt_pitch);
/* Recompute the viewport/scissor state. */
context_dirty(ctx, VIEWPORT);
context_dirty(ctx, SCISSOR);
}
void
nv20_emit_viewport(GLcontext *ctx, int emit)
{
struct nouveau_channel *chan = context_chan(ctx);
struct nouveau_grobj *kelvin = context_eng3d(ctx);
struct gl_framebuffer *fb = ctx->DrawBuffer;
float a[4] = {};
get_viewport_translate(ctx, a);
BEGIN_RING(chan, kelvin, NV20TCL_VIEWPORT_TRANSLATE_X, 4);
OUT_RINGp(chan, a, 4);
BEGIN_RING(chan, kelvin, NV20TCL_VIEWPORT_CLIP_HORIZ(0), 1);
OUT_RING(chan, (fb->Width - 1) << 16);
BEGIN_RING(chan, kelvin, NV20TCL_VIEWPORT_CLIP_VERT(0), 1);
OUT_RING(chan, (fb->Height - 1) << 16);
context_dirty(ctx, PROJECTION);
}
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