/*
* Copyright (C) 2009-2010 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 <stdbool.h>
#include "nouveau_driver.h"
#include "nouveau_context.h"
#include "nouveau_bufferobj.h"
#include "nouveau_fbo.h"
#include "nv_object.xml.h"
#include "main/dd.h"
#include "main/framebuffer.h"
#include "main/fbobject.h"
#include "main/light.h"
#include "main/state.h"
#include "main/version.h"
#include "drivers/common/meta.h"
#include "drivers/common/driverfuncs.h"
#include "swrast/swrast.h"
#include "swrast/s_context.h"
#include "vbo/vbo.h"
#include "tnl/tnl.h"
#include "tnl/t_context.h"
GLboolean
nouveau_context_create(gl_api api,
const struct gl_config *visual, __DRIcontext *dri_ctx,
unsigned major_version,
unsigned minor_version,
uint32_t flags,
unsigned *error,
void *share_ctx)
{
__DRIscreen *dri_screen = dri_ctx->driScreenPriv;
struct nouveau_screen *screen = dri_screen->driverPrivate;
struct nouveau_context *nctx;
struct gl_context *ctx;
switch (api) {
case API_OPENGL:
/* Do after-the-fact version checking (below).
*/
break;
case API_OPENGLES:
/* NV10 and NV20 can support OpenGL ES 1.0 only. Older chips
* cannot do even that.
*/
if ((screen->device->chipset & 0xf0) == 0x00) {
*error = __DRI_CTX_ERROR_BAD_API;
return GL_FALSE;
} else if (minor_version != 0) {
*error = __DRI_CTX_ERROR_BAD_VERSION;
return GL_FALSE;
}
break;
case API_OPENGLES2:
case API_OPENGL_CORE:
*error = __DRI_CTX_ERROR_BAD_API;
return GL_FALSE;
}
/* API and flag filtering is handled in dri2CreateContextAttribs.
*/
(void) flags;
ctx = screen->driver->context_create(screen, visual, share_ctx);
if (!ctx) {
*error = __DRI_CTX_ERROR_NO_MEMORY;
return GL_FALSE;
}
nctx = to_nouveau_context(ctx);
nctx->dri_context = dri_ctx;
dri_ctx->driverPrivate = ctx;
_mesa_compute_version(ctx);
if (ctx->Version < major_version * 10 + minor_version) {
nouveau_context_destroy(dri_ctx);
*error = __DRI_CTX_ERROR_BAD_VERSION;
return GL_FALSE;
}
if (nouveau_bo_new(context_dev(ctx), NOUVEAU_BO_VRAM, 0, 4096,
NULL, &nctx->fence)) {
nouveau_context_destroy(dri_ctx);
*error = __DRI_CTX_ERROR_NO_MEMORY;
return GL_FALSE;
}
*error = __DRI_CTX_ERROR_SUCCESS;
return GL_TRUE;
}
GLboolean
nouveau_context_init(struct gl_context *ctx, struct nouveau_screen *screen,
const struct gl_config *visual, struct gl_context *share_ctx)
{
struct nouveau_context *nctx = to_nouveau_context(ctx);
struct dd_function_table functions;
int ret;
nctx->screen = screen;
nctx->fallback = HWTNL;
/* Initialize the function pointers. */
_mesa_init_driver_functions(&functions);
nouveau_driver_functions_init(&functions);
nouveau_bufferobj_functions_init(&functions);
nouveau_texture_functions_init(&functions);
nouveau_fbo_functions_init(&functions);
/* Initialize the mesa context. */
_mesa_initialize_context(ctx, API_OPENGL, visual,
share_ctx, &functions, NULL);
nouveau_state_init(ctx);
nouveau_scratch_init(ctx);
_mesa_meta_init(ctx);
_swrast_CreateContext(ctx);
_vbo_CreateContext(ctx);
_tnl_CreateContext(ctx);
nouveau_span_functions_init(ctx);
_mesa_allow_light_in_model(ctx, GL_FALSE);
/* Allocate a hardware channel. */
ret = nouveau_object_new(&context_dev(ctx)->object, 0xbeef0000,
NOUVEAU_FIFO_CHANNEL_CLASS,
&(struct nv04_fifo){
.vram = 0xbeef0201,
.gart = 0xbeef0202
}, sizeof(struct nv04_fifo), &nctx->hw.chan);
if (ret) {
nouveau_error("Error initializing the FIFO.\n");
return GL_FALSE;
}
/* Allocate a client (thread data) */
ret = nouveau_client_new(context_dev(ctx), &nctx->hw.client);
if (ret) {
nouveau_error("Error creating thread data\n");
return GL_FALSE;
}
/* Allocate a push buffer */
ret = nouveau_pushbuf_new(nctx->hw.client, nctx->hw.chan, 4,
512 * 1024, true, &nctx->hw.pushbuf);
if (ret) {
nouveau_error("Error allocating DMA push buffer\n");
return GL_FALSE;
}
/* Allocate buffer context */
ret = nouveau_bufctx_new(nctx->hw.client, 16, &nctx->hw.bufctx);
if (ret) {
nouveau_error("Error allocating buffer context\n");
return GL_FALSE;
}
nctx->hw.pushbuf->user_priv = nctx->hw.bufctx;
/* Allocate NULL object */
ret = nouveau_object_new(nctx->hw.chan, 0x00000000, NV01_NULL_CLASS,
NULL, 0, &nctx->hw.null);
if (ret) {
nouveau_error("Error allocating NULL object\n");
return GL_FALSE;
}
/* Enable any supported extensions. */
ctx->Extensions.EXT_blend_color = true;
ctx->Extensions.EXT_blend_minmax = true;
ctx->Extensions.EXT_fog_coord = true;
ctx->Extensions.EXT_framebuffer_blit = true;
ctx->Extensions.EXT_framebuffer_object = true;
ctx->Extensions.EXT_packed_depth_stencil = true;
ctx->Extensions.EXT_secondary_color = true;
ctx->Extensions.EXT_texture_filter_anisotropic = true;
ctx->Extensions.NV_blend_square = true;
ctx->Extensions.NV_texture_env_combine4 = true;
return GL_TRUE;
}
void
nouveau_context_deinit(struct gl_context *ctx)
{
struct nouveau_context *nctx = to_nouveau_context(ctx);
if (TNL_CONTEXT(ctx))
_tnl_DestroyContext(ctx);
if (vbo_context(ctx))
_vbo_DestroyContext(ctx);
if (SWRAST_CONTEXT(ctx))
_swrast_DestroyContext(ctx);
if (ctx->Meta)
_mesa_meta_free(ctx);
nouveau_bufctx_del(&nctx->hw.bufctx);
nouveau_pushbuf_del(&nctx->hw.pushbuf);
nouveau_client_del(&nctx->hw.client);
nouveau_object_del(&nctx->hw.chan);
nouveau_scratch_destroy(ctx);
_mesa_free_context_data(ctx);
}
void
nouveau_context_destroy(__DRIcontext *dri_ctx)
{
struct nouveau_context *nctx = dri_ctx->driverPrivate;
struct gl_context *ctx = &nctx->base;
nouveau_bo_ref(NULL, &nctx->fence);
context_drv(ctx)->context_destroy(ctx);
}
void
nouveau_update_renderbuffers(__DRIcontext *dri_ctx, __DRIdrawable *draw)
{
struct gl_context *ctx = dri_ctx->driverPrivate;
struct nouveau_context *nctx = to_nouveau_context(ctx);
__DRIscreen *screen = dri_ctx->driScreenPriv;
struct gl_framebuffer *fb = draw->driverPrivate;
struct nouveau_framebuffer *nfb = to_nouveau_framebuffer(fb);
unsigned int attachments[10];
__DRIbuffer *buffers = NULL;
int i = 0, count, ret;
if (draw->lastStamp == draw->dri2.stamp)
return;
draw->lastStamp = draw->dri2.stamp;
if (nfb->need_front)
attachments[i++] = __DRI_BUFFER_FRONT_LEFT;
if (fb->Visual.doubleBufferMode)
attachments[i++] = __DRI_BUFFER_BACK_LEFT;
if (fb->Visual.haveDepthBuffer && fb->Visual.haveStencilBuffer)
attachments[i++] = __DRI_BUFFER_DEPTH_STENCIL;
else if (fb->Visual.haveDepthBuffer)
attachments[i++] = __DRI_BUFFER_DEPTH;
else if (fb->Visual.haveStencilBuffer)
attachments[i++] = __DRI_BUFFER_STENCIL;
buffers = (*screen->dri2.loader->getBuffers)(draw, &draw->w, &draw->h,
attachments, i, &count,
draw->loaderPrivate);
if (buffers == NULL)
return;
for (i = 0; i < count; i++) {
struct gl_renderbuffer *rb;
struct nouveau_surface *s;
uint32_t old_name;
int index;
switch (buffers[i].attachment) {
case __DRI_BUFFER_FRONT_LEFT:
case __DRI_BUFFER_FAKE_FRONT_LEFT:
index = BUFFER_FRONT_LEFT;
break;
case __DRI_BUFFER_BACK_LEFT:
index = BUFFER_BACK_LEFT;
break;
case __DRI_BUFFER_DEPTH:
case __DRI_BUFFER_DEPTH_STENCIL:
index = BUFFER_DEPTH;
break;
case __DRI_BUFFER_STENCIL:
index = BUFFER_STENCIL;
break;
default:
assert(0);
}
rb = fb->Attachment[index].Renderbuffer;
s = &to_nouveau_renderbuffer(rb)->surface;
s->width = draw->w;
s->height = draw->h;
s->pitch = buffers[i].pitch;
s->cpp = buffers[i].cpp;
if (index == BUFFER_DEPTH && s->bo) {
ret = nouveau_bo_name_get(s->bo, &old_name);
/*
* Disable fast Z clears in the next frame, the
* depth buffer contents are undefined.
*/
if (!ret && old_name != buffers[i].name)
nctx->hierz.clear_seq = 0;
}
nouveau_bo_ref(NULL, &s->bo);
ret = nouveau_bo_name_ref(context_dev(ctx),
buffers[i].name, &s->bo);
assert(!ret);
}
_mesa_resize_framebuffer(ctx, fb, draw->w, draw->h);
}
static void
update_framebuffer(__DRIcontext *dri_ctx, __DRIdrawable *draw,
int *stamp)
{
struct gl_context *ctx = dri_ctx->driverPrivate;
struct gl_framebuffer *fb = draw->driverPrivate;
*stamp = draw->dri2.stamp;
nouveau_update_renderbuffers(dri_ctx, draw);
_mesa_resize_framebuffer(ctx, fb, draw->w, draw->h);
/* Clean up references to the old framebuffer objects. */
context_dirty(ctx, FRAMEBUFFER);
nouveau_bufctx_reset(to_nouveau_context(ctx)->hw.bufctx, BUFCTX_FB);
PUSH_KICK(context_push(ctx));
}
GLboolean
nouveau_context_make_current(__DRIcontext *dri_ctx, __DRIdrawable *dri_draw,
__DRIdrawable *dri_read)
{
if (dri_ctx) {
struct nouveau_context *nctx = dri_ctx->driverPrivate;
struct gl_context *ctx = &nctx->base;
/* Ask the X server for new renderbuffers. */
if (dri_draw->driverPrivate != ctx->WinSysDrawBuffer)
update_framebuffer(dri_ctx, dri_draw,
&dri_ctx->dri2.draw_stamp);
if (dri_draw != dri_read &&
dri_read->driverPrivate != ctx->WinSysReadBuffer)
update_framebuffer(dri_ctx, dri_read,
&dri_ctx->dri2.read_stamp);
/* Pass it down to mesa. */
_mesa_make_current(ctx, dri_draw->driverPrivate,
dri_read->driverPrivate);
_mesa_update_state(ctx);
} else {
_mesa_make_current(NULL, NULL, NULL);
}
return GL_TRUE;
}
GLboolean
nouveau_context_unbind(__DRIcontext *dri_ctx)
{
/* Unset current context and dispatch table */
_mesa_make_current(NULL, NULL, NULL);
return GL_TRUE;
}
void
nouveau_fallback(struct gl_context *ctx, enum nouveau_fallback mode)
{
struct nouveau_context *nctx = to_nouveau_context(ctx);
nctx->fallback = MAX2(HWTNL, mode);
if (mode < SWRAST) {
nouveau_state_emit(ctx);
#if 0
nouveau_bo_state_emit(ctx);
#endif
} else {
PUSH_KICK(context_push(ctx));
}
}
static void
validate_framebuffer(__DRIcontext *dri_ctx, __DRIdrawable *draw,
int *stamp)
{
struct gl_framebuffer *fb = draw->driverPrivate;
struct nouveau_framebuffer *nfb = to_nouveau_framebuffer(fb);
GLboolean need_front =
(fb->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT ||
fb->_ColorReadBufferIndex == BUFFER_FRONT_LEFT);
if (nfb->need_front != need_front) {
nfb->need_front = need_front;
dri2InvalidateDrawable(draw);
}
if (draw->dri2.stamp != *stamp)
update_framebuffer(dri_ctx, draw, stamp);
}
void
nouveau_validate_framebuffer(struct gl_context *ctx)
{
__DRIcontext *dri_ctx = to_nouveau_context(ctx)->dri_context;
__DRIdrawable *dri_draw = dri_ctx->driDrawablePriv;
__DRIdrawable *dri_read = dri_ctx->driReadablePriv;
if (_mesa_is_winsys_fbo(ctx->DrawBuffer))
validate_framebuffer(dri_ctx, dri_draw,
&dri_ctx->dri2.draw_stamp);
if (_mesa_is_winsys_fbo(ctx->ReadBuffer))
validate_framebuffer(dri_ctx, dri_read,
&dri_ctx->dri2.read_stamp);
if (ctx->NewState & _NEW_BUFFERS)
_mesa_update_state(ctx);
}