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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 "nv20_3d.xml.h"
#include "nv20_driver.h"
static inline unsigned
get_rt_format(mesa_format format)
{
switch (format) {
case MESA_FORMAT_B8G8R8X8_UNORM:
return NV20_3D_RT_FORMAT_COLOR_X8R8G8B8;
case MESA_FORMAT_B8G8R8A8_UNORM:
return NV20_3D_RT_FORMAT_COLOR_A8R8G8B8;
case MESA_FORMAT_B5G6R5_UNORM:
return NV20_3D_RT_FORMAT_COLOR_R5G6B5;
case MESA_FORMAT_Z_UNORM16:
return NV20_3D_RT_FORMAT_DEPTH_Z16;
case MESA_FORMAT_S8_UINT_Z24_UNORM:
return NV20_3D_RT_FORMAT_DEPTH_Z24S8;
default:
assert(0);
}
}
static void
setup_hierz_buffer(struct gl_context *ctx)
{
struct nouveau_pushbuf *push = context_push(ctx);
struct gl_framebuffer *fb = ctx->DrawBuffer;
struct nouveau_framebuffer *nfb = to_nouveau_framebuffer(fb);
unsigned pitch = align(fb->Width, 128),
height = align(fb->Height, 2),
size = pitch * height;
if (!nfb->hierz.bo || nfb->hierz.bo->size != size) {
nouveau_bo_ref(NULL, &nfb->hierz.bo);
nouveau_bo_new(context_dev(ctx), NOUVEAU_BO_VRAM, 0, size,
NULL, &nfb->hierz.bo);
}
BEGIN_NV04(push, NV25_3D(HIERZ_PITCH), 1);
PUSH_DATA (push, pitch);
BEGIN_NV04(push, NV25_3D(HIERZ_OFFSET), 1);
PUSH_MTHDl(push, NV25_3D(HIERZ_OFFSET), BUFCTX_FB,
nfb->hierz.bo, 0, NOUVEAU_BO_VRAM | NOUVEAU_BO_RDWR);
}
void
nv20_emit_framebuffer(struct gl_context *ctx, int emit)
{
struct nouveau_pushbuf *push = context_push(ctx);
struct gl_framebuffer *fb = ctx->DrawBuffer;
struct nouveau_surface *s;
unsigned rt_format = NV20_3D_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;
PUSH_RESET(push, BUFCTX_FB);
/* 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;
BEGIN_NV04(push, NV20_3D(COLOR_OFFSET), 1);
PUSH_MTHDl(push, NV20_3D(COLOR_OFFSET), BUFCTX_FB,
s->bo, 0, bo_flags);
}
/* depth/stencil */
if (fb->Attachment[BUFFER_DEPTH].Renderbuffer) {
s = &to_nouveau_renderbuffer(
fb->Attachment[BUFFER_DEPTH].Renderbuffer)->surface;
rt_format |= get_rt_format(s->format);
zeta_pitch = s->pitch;
BEGIN_NV04(push, NV20_3D(ZETA_OFFSET), 1);
PUSH_MTHDl(push, NV20_3D(ZETA_OFFSET), BUFCTX_FB,
s->bo, 0, bo_flags);
if (context_chipset(ctx) >= 0x25)
setup_hierz_buffer(ctx);
} else {
rt_format |= get_rt_format(MESA_FORMAT_S8_UINT_Z24_UNORM);
zeta_pitch = rt_pitch;
}
BEGIN_NV04(push, NV20_3D(RT_FORMAT), 2);
PUSH_DATA (push, rt_format);
PUSH_DATA (push, zeta_pitch << 16 | rt_pitch);
/* Recompute the viewport/scissor state. */
context_dirty(ctx, VIEWPORT);
context_dirty(ctx, SCISSOR);
context_dirty(ctx, DEPTH);
}
void
nv20_emit_viewport(struct gl_context *ctx, int emit)
{
struct nouveau_pushbuf *push = context_push(ctx);
struct gl_framebuffer *fb = ctx->DrawBuffer;
float a[4] = {};
get_viewport_translate(ctx, a);
BEGIN_NV04(push, NV20_3D(VIEWPORT_TRANSLATE_X), 4);
PUSH_DATAp(push, a, 4);
BEGIN_NV04(push, NV20_3D(VIEWPORT_CLIP_HORIZ(0)), 1);
PUSH_DATA (push, (fb->Width - 1) << 16);
BEGIN_NV04(push, NV20_3D(VIEWPORT_CLIP_VERT(0)), 1);
PUSH_DATA (push, (fb->Height - 1) << 16);
context_dirty(ctx, PROJECTION);
}
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