0,0 → 1,885 |
/* |
* Mesa 3-D graphics library |
* |
* Copyright (C) 2010 LunarG Inc. |
* |
* 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 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 AUTHORS OR COPYRIGHT HOLDERS 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. |
* |
* Authors: |
* Chia-I Wu <olv@lunarg.com> |
*/ |
|
#include "main/mtypes.h" |
#include "main/context.h" |
#include "main/texobj.h" |
#include "main/teximage.h" |
#include "main/texstate.h" |
#include "main/framebuffer.h" |
#include "main/fbobject.h" |
#include "main/renderbuffer.h" |
#include "main/version.h" |
#include "st_texture.h" |
|
#include "st_context.h" |
#include "st_format.h" |
#include "st_cb_fbo.h" |
#include "st_cb_flush.h" |
#include "st_manager.h" |
|
#include "state_tracker/st_gl_api.h" |
|
#include "pipe/p_context.h" |
#include "pipe/p_screen.h" |
#include "util/u_format.h" |
#include "util/u_pointer.h" |
#include "util/u_inlines.h" |
#include "util/u_atomic.h" |
#include "util/u_surface.h" |
|
/** |
* Cast wrapper to convert a struct gl_framebuffer to an st_framebuffer. |
* Return NULL if the struct gl_framebuffer is a user-created framebuffer. |
* We'll only return non-null for window system framebuffers. |
* Note that this function may fail. |
*/ |
static INLINE struct st_framebuffer * |
st_ws_framebuffer(struct gl_framebuffer *fb) |
{ |
/* FBO cannot be casted. See st_new_framebuffer */ |
if (fb && _mesa_is_winsys_fbo(fb)) |
return (struct st_framebuffer *) fb; |
return NULL; |
} |
|
/** |
* Map an attachment to a buffer index. |
*/ |
static INLINE gl_buffer_index |
attachment_to_buffer_index(enum st_attachment_type statt) |
{ |
gl_buffer_index index; |
|
switch (statt) { |
case ST_ATTACHMENT_FRONT_LEFT: |
index = BUFFER_FRONT_LEFT; |
break; |
case ST_ATTACHMENT_BACK_LEFT: |
index = BUFFER_BACK_LEFT; |
break; |
case ST_ATTACHMENT_FRONT_RIGHT: |
index = BUFFER_FRONT_RIGHT; |
break; |
case ST_ATTACHMENT_BACK_RIGHT: |
index = BUFFER_BACK_RIGHT; |
break; |
case ST_ATTACHMENT_DEPTH_STENCIL: |
index = BUFFER_DEPTH; |
break; |
case ST_ATTACHMENT_ACCUM: |
index = BUFFER_ACCUM; |
break; |
case ST_ATTACHMENT_SAMPLE: |
default: |
index = BUFFER_COUNT; |
break; |
} |
|
return index; |
} |
|
/** |
* Map a buffer index to an attachment. |
*/ |
static INLINE enum st_attachment_type |
buffer_index_to_attachment(gl_buffer_index index) |
{ |
enum st_attachment_type statt; |
|
switch (index) { |
case BUFFER_FRONT_LEFT: |
statt = ST_ATTACHMENT_FRONT_LEFT; |
break; |
case BUFFER_BACK_LEFT: |
statt = ST_ATTACHMENT_BACK_LEFT; |
break; |
case BUFFER_FRONT_RIGHT: |
statt = ST_ATTACHMENT_FRONT_RIGHT; |
break; |
case BUFFER_BACK_RIGHT: |
statt = ST_ATTACHMENT_BACK_RIGHT; |
break; |
case BUFFER_DEPTH: |
statt = ST_ATTACHMENT_DEPTH_STENCIL; |
break; |
case BUFFER_ACCUM: |
statt = ST_ATTACHMENT_ACCUM; |
break; |
default: |
statt = ST_ATTACHMENT_INVALID; |
break; |
} |
|
return statt; |
} |
|
/** |
* Make sure a context picks up the latest cached state of the |
* drawables it binds to. |
*/ |
static void |
st_context_validate(struct st_context *st, |
struct st_framebuffer *stdraw, |
struct st_framebuffer *stread) |
{ |
if (stdraw && stdraw->stamp != st->draw_stamp) { |
st->dirty.st |= ST_NEW_FRAMEBUFFER; |
_mesa_resize_framebuffer(st->ctx, &stdraw->Base, |
stdraw->Base.Width, |
stdraw->Base.Height); |
st->draw_stamp = stdraw->stamp; |
} |
|
if (stread && stread->stamp != st->read_stamp) { |
if (stread != stdraw) { |
st->dirty.st |= ST_NEW_FRAMEBUFFER; |
_mesa_resize_framebuffer(st->ctx, &stread->Base, |
stread->Base.Width, |
stread->Base.Height); |
} |
st->read_stamp = stread->stamp; |
} |
} |
|
/** |
* Validate a framebuffer to make sure up-to-date pipe_textures are used. |
* The context is only used for creating pipe surfaces and for calling |
* _mesa_resize_framebuffer(). |
* (That should probably be rethought, since those surfaces become |
* drawable state, not context state, and can be freed by another pipe |
* context). |
*/ |
static void |
st_framebuffer_validate(struct st_framebuffer *stfb, |
struct st_context *st) |
{ |
struct pipe_resource *textures[ST_ATTACHMENT_COUNT]; |
uint width, height; |
unsigned i; |
boolean changed = FALSE; |
int32_t new_stamp = p_atomic_read(&stfb->iface->stamp); |
|
if (stfb->iface_stamp == new_stamp) |
return; |
|
/* validate the fb */ |
do { |
if (!stfb->iface->validate(&st->iface, stfb->iface, stfb->statts, |
stfb->num_statts, textures)) |
return; |
|
stfb->iface_stamp = new_stamp; |
new_stamp = p_atomic_read(&stfb->iface->stamp); |
} while(stfb->iface_stamp != new_stamp); |
|
width = stfb->Base.Width; |
height = stfb->Base.Height; |
|
for (i = 0; i < stfb->num_statts; i++) { |
struct st_renderbuffer *strb; |
struct pipe_surface *ps, surf_tmpl; |
gl_buffer_index idx; |
|
if (!textures[i]) |
continue; |
|
idx = attachment_to_buffer_index(stfb->statts[i]); |
if (idx >= BUFFER_COUNT) { |
pipe_resource_reference(&textures[i], NULL); |
continue; |
} |
|
strb = st_renderbuffer(stfb->Base.Attachment[idx].Renderbuffer); |
assert(strb); |
if (strb->texture == textures[i]) { |
pipe_resource_reference(&textures[i], NULL); |
continue; |
} |
|
u_surface_default_template(&surf_tmpl, textures[i]); |
ps = st->pipe->create_surface(st->pipe, textures[i], &surf_tmpl); |
if (ps) { |
pipe_surface_reference(&strb->surface, ps); |
pipe_resource_reference(&strb->texture, ps->texture); |
/* ownership transfered */ |
pipe_surface_reference(&ps, NULL); |
|
changed = TRUE; |
|
strb->Base.Width = strb->surface->width; |
strb->Base.Height = strb->surface->height; |
|
width = strb->Base.Width; |
height = strb->Base.Height; |
} |
|
pipe_resource_reference(&textures[i], NULL); |
} |
|
if (changed) { |
++stfb->stamp; |
_mesa_resize_framebuffer(st->ctx, &stfb->Base, width, height); |
} |
} |
|
/** |
* Update the attachments to validate by looping the existing renderbuffers. |
*/ |
static void |
st_framebuffer_update_attachments(struct st_framebuffer *stfb) |
{ |
gl_buffer_index idx; |
|
stfb->num_statts = 0; |
for (idx = 0; idx < BUFFER_COUNT; idx++) { |
struct st_renderbuffer *strb; |
enum st_attachment_type statt; |
|
strb = st_renderbuffer(stfb->Base.Attachment[idx].Renderbuffer); |
if (!strb || strb->software) |
continue; |
|
statt = buffer_index_to_attachment(idx); |
if (statt != ST_ATTACHMENT_INVALID && |
st_visual_have_buffers(stfb->iface->visual, 1 << statt)) |
stfb->statts[stfb->num_statts++] = statt; |
} |
stfb->stamp++; |
} |
|
/** |
* Add a renderbuffer to the framebuffer. |
*/ |
static boolean |
st_framebuffer_add_renderbuffer(struct st_framebuffer *stfb, |
gl_buffer_index idx) |
{ |
struct gl_renderbuffer *rb; |
enum pipe_format format; |
boolean sw; |
|
if (!stfb->iface) |
return FALSE; |
|
/* do not distinguish depth/stencil buffers */ |
if (idx == BUFFER_STENCIL) |
idx = BUFFER_DEPTH; |
|
switch (idx) { |
case BUFFER_DEPTH: |
format = stfb->iface->visual->depth_stencil_format; |
sw = FALSE; |
break; |
case BUFFER_ACCUM: |
format = stfb->iface->visual->accum_format; |
sw = TRUE; |
break; |
default: |
format = stfb->iface->visual->color_format; |
sw = FALSE; |
break; |
} |
|
if (format == PIPE_FORMAT_NONE) |
return FALSE; |
|
rb = st_new_renderbuffer_fb(format, stfb->iface->visual->samples, sw); |
if (!rb) |
return FALSE; |
|
if (idx != BUFFER_DEPTH) { |
_mesa_add_renderbuffer(&stfb->Base, idx, rb); |
} |
else { |
if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 0)) |
_mesa_add_renderbuffer(&stfb->Base, BUFFER_DEPTH, rb); |
if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 1)) |
_mesa_add_renderbuffer(&stfb->Base, BUFFER_STENCIL, rb); |
} |
|
return TRUE; |
} |
|
/** |
* Intialize a struct gl_config from a visual. |
*/ |
static void |
st_visual_to_context_mode(const struct st_visual *visual, |
struct gl_config *mode) |
{ |
memset(mode, 0, sizeof(*mode)); |
|
if (st_visual_have_buffers(visual, ST_ATTACHMENT_BACK_LEFT_MASK)) |
mode->doubleBufferMode = GL_TRUE; |
if (st_visual_have_buffers(visual, |
ST_ATTACHMENT_FRONT_RIGHT_MASK | ST_ATTACHMENT_BACK_RIGHT_MASK)) |
mode->stereoMode = GL_TRUE; |
|
if (visual->color_format != PIPE_FORMAT_NONE) { |
mode->rgbMode = GL_TRUE; |
|
mode->redBits = |
util_format_get_component_bits(visual->color_format, |
UTIL_FORMAT_COLORSPACE_RGB, 0); |
mode->greenBits = |
util_format_get_component_bits(visual->color_format, |
UTIL_FORMAT_COLORSPACE_RGB, 1); |
mode->blueBits = |
util_format_get_component_bits(visual->color_format, |
UTIL_FORMAT_COLORSPACE_RGB, 2); |
mode->alphaBits = |
util_format_get_component_bits(visual->color_format, |
UTIL_FORMAT_COLORSPACE_RGB, 3); |
|
mode->rgbBits = mode->redBits + |
mode->greenBits + mode->blueBits + mode->alphaBits; |
} |
|
if (visual->depth_stencil_format != PIPE_FORMAT_NONE) { |
mode->depthBits = |
util_format_get_component_bits(visual->depth_stencil_format, |
UTIL_FORMAT_COLORSPACE_ZS, 0); |
mode->stencilBits = |
util_format_get_component_bits(visual->depth_stencil_format, |
UTIL_FORMAT_COLORSPACE_ZS, 1); |
|
mode->haveDepthBuffer = mode->depthBits > 0; |
mode->haveStencilBuffer = mode->stencilBits > 0; |
} |
|
if (visual->accum_format != PIPE_FORMAT_NONE) { |
mode->haveAccumBuffer = GL_TRUE; |
|
mode->accumRedBits = |
util_format_get_component_bits(visual->accum_format, |
UTIL_FORMAT_COLORSPACE_RGB, 0); |
mode->accumGreenBits = |
util_format_get_component_bits(visual->accum_format, |
UTIL_FORMAT_COLORSPACE_RGB, 1); |
mode->accumBlueBits = |
util_format_get_component_bits(visual->accum_format, |
UTIL_FORMAT_COLORSPACE_RGB, 2); |
mode->accumAlphaBits = |
util_format_get_component_bits(visual->accum_format, |
UTIL_FORMAT_COLORSPACE_RGB, 3); |
} |
|
if (visual->samples > 1) { |
mode->sampleBuffers = 1; |
mode->samples = visual->samples; |
} |
} |
|
/** |
* Create a framebuffer from a manager interface. |
*/ |
static struct st_framebuffer * |
st_framebuffer_create(struct st_framebuffer_iface *stfbi) |
{ |
struct st_framebuffer *stfb; |
struct gl_config mode; |
gl_buffer_index idx; |
|
if (!stfbi) |
return NULL; |
|
stfb = CALLOC_STRUCT(st_framebuffer); |
if (!stfb) |
return NULL; |
|
st_visual_to_context_mode(stfbi->visual, &mode); |
_mesa_initialize_window_framebuffer(&stfb->Base, &mode); |
|
stfb->iface = stfbi; |
stfb->iface_stamp = p_atomic_read(&stfbi->stamp) - 1; |
|
/* add the color buffer */ |
idx = stfb->Base._ColorDrawBufferIndexes[0]; |
if (!st_framebuffer_add_renderbuffer(stfb, idx)) { |
free(stfb); |
return NULL; |
} |
|
st_framebuffer_add_renderbuffer(stfb, BUFFER_DEPTH); |
st_framebuffer_add_renderbuffer(stfb, BUFFER_ACCUM); |
|
stfb->stamp = 0; |
st_framebuffer_update_attachments(stfb); |
|
return stfb; |
} |
|
/** |
* Reference a framebuffer. |
*/ |
static void |
st_framebuffer_reference(struct st_framebuffer **ptr, |
struct st_framebuffer *stfb) |
{ |
struct gl_framebuffer *fb = &stfb->Base; |
_mesa_reference_framebuffer((struct gl_framebuffer **) ptr, fb); |
} |
|
static void |
st_context_flush(struct st_context_iface *stctxi, unsigned flags, |
struct pipe_fence_handle **fence) |
{ |
struct st_context *st = (struct st_context *) stctxi; |
unsigned pipe_flags = 0; |
|
if (flags & ST_FLUSH_END_OF_FRAME) { |
pipe_flags |= PIPE_FLUSH_END_OF_FRAME; |
} |
|
st_flush(st, fence, pipe_flags); |
if (flags & ST_FLUSH_FRONT) |
st_manager_flush_frontbuffer(st); |
} |
|
static boolean |
st_context_teximage(struct st_context_iface *stctxi, |
enum st_texture_type tex_type, |
int level, enum pipe_format pipe_format, |
struct pipe_resource *tex, boolean mipmap) |
{ |
struct st_context *st = (struct st_context *) stctxi; |
struct gl_context *ctx = st->ctx; |
struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); |
struct gl_texture_object *texObj; |
struct gl_texture_image *texImage; |
struct st_texture_object *stObj; |
struct st_texture_image *stImage; |
GLenum internalFormat; |
GLuint width, height, depth; |
GLenum target; |
|
switch (tex_type) { |
case ST_TEXTURE_1D: |
target = GL_TEXTURE_1D; |
break; |
case ST_TEXTURE_2D: |
target = GL_TEXTURE_2D; |
break; |
case ST_TEXTURE_3D: |
target = GL_TEXTURE_3D; |
break; |
case ST_TEXTURE_RECT: |
target = GL_TEXTURE_RECTANGLE_ARB; |
break; |
default: |
return FALSE; |
} |
|
texObj = _mesa_select_tex_object(ctx, texUnit, target); |
_mesa_lock_texture(ctx, texObj); |
|
stObj = st_texture_object(texObj); |
/* switch to surface based */ |
if (!stObj->surface_based) { |
_mesa_clear_texture_object(ctx, texObj); |
stObj->surface_based = GL_TRUE; |
} |
|
texImage = _mesa_get_tex_image(ctx, texObj, target, level); |
stImage = st_texture_image(texImage); |
if (tex) { |
gl_format texFormat = st_pipe_format_to_mesa_format(pipe_format); |
|
if (util_format_has_alpha(tex->format)) |
internalFormat = GL_RGBA; |
else |
internalFormat = GL_RGB; |
|
_mesa_init_teximage_fields(ctx, texImage, |
tex->width0, tex->height0, 1, 0, |
internalFormat, texFormat); |
|
width = tex->width0; |
height = tex->height0; |
depth = tex->depth0; |
|
/* grow the image size until we hit level = 0 */ |
while (level > 0) { |
if (width != 1) |
width <<= 1; |
if (height != 1) |
height <<= 1; |
if (depth != 1) |
depth <<= 1; |
level--; |
} |
} |
else { |
_mesa_clear_texture_image(ctx, texImage); |
width = height = depth = 0; |
} |
|
pipe_resource_reference(&stImage->pt, tex); |
stObj->width0 = width; |
stObj->height0 = height; |
stObj->depth0 = depth; |
stObj->surface_format = pipe_format; |
|
_mesa_dirty_texobj(ctx, texObj, GL_TRUE); |
_mesa_unlock_texture(ctx, texObj); |
|
return TRUE; |
} |
|
static void |
st_context_copy(struct st_context_iface *stctxi, |
struct st_context_iface *stsrci, unsigned mask) |
{ |
struct st_context *st = (struct st_context *) stctxi; |
struct st_context *src = (struct st_context *) stsrci; |
|
_mesa_copy_context(src->ctx, st->ctx, mask); |
} |
|
static boolean |
st_context_share(struct st_context_iface *stctxi, |
struct st_context_iface *stsrci) |
{ |
struct st_context *st = (struct st_context *) stctxi; |
struct st_context *src = (struct st_context *) stsrci; |
|
return _mesa_share_state(st->ctx, src->ctx); |
} |
|
static void |
st_context_destroy(struct st_context_iface *stctxi) |
{ |
struct st_context *st = (struct st_context *) stctxi; |
st_destroy_context(st); |
} |
|
static struct st_context_iface * |
st_api_create_context(struct st_api *stapi, struct st_manager *smapi, |
const struct st_context_attribs *attribs, |
enum st_context_error *error, |
struct st_context_iface *shared_stctxi) |
{ |
struct st_context *shared_ctx = (struct st_context *) shared_stctxi; |
struct st_context *st; |
struct pipe_context *pipe; |
struct gl_config mode; |
gl_api api; |
|
if (!(stapi->profile_mask & (1 << attribs->profile))) |
return NULL; |
|
switch (attribs->profile) { |
case ST_PROFILE_DEFAULT: |
api = API_OPENGL_COMPAT; |
break; |
case ST_PROFILE_OPENGL_ES1: |
api = API_OPENGLES; |
break; |
case ST_PROFILE_OPENGL_ES2: |
api = API_OPENGLES2; |
break; |
case ST_PROFILE_OPENGL_CORE: |
api = API_OPENGL_CORE; |
break; |
default: |
*error = ST_CONTEXT_ERROR_BAD_API; |
return NULL; |
break; |
} |
|
pipe = smapi->screen->context_create(smapi->screen, NULL); |
if (!pipe) { |
*error = ST_CONTEXT_ERROR_NO_MEMORY; |
return NULL; |
} |
|
st_visual_to_context_mode(&attribs->visual, &mode); |
st = st_create_context(api, pipe, &mode, shared_ctx, &attribs->options); |
if (!st) { |
*error = ST_CONTEXT_ERROR_NO_MEMORY; |
pipe->destroy(pipe); |
return NULL; |
} |
|
if (attribs->flags & ST_CONTEXT_FLAG_DEBUG) |
st->ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_DEBUG_BIT; |
if (attribs->flags & ST_CONTEXT_FLAG_FORWARD_COMPATIBLE) |
st->ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT; |
|
/* need to perform version check */ |
if (attribs->major > 1 || attribs->minor > 0) { |
/* Is the actual version less than the requested version? |
*/ |
if (st->ctx->Version < attribs->major * 10 + attribs->minor) { |
*error = ST_CONTEXT_ERROR_BAD_VERSION; |
st_destroy_context(st); |
return NULL; |
} |
} |
|
st->invalidate_on_gl_viewport = |
smapi->get_param(smapi, ST_MANAGER_BROKEN_INVALIDATE); |
|
st->iface.destroy = st_context_destroy; |
st->iface.flush = st_context_flush; |
st->iface.teximage = st_context_teximage; |
st->iface.copy = st_context_copy; |
st->iface.share = st_context_share; |
st->iface.st_context_private = (void *) smapi; |
st->iface.cso_context = st->cso_context; |
st->iface.pipe = st->pipe; |
|
*error = ST_CONTEXT_SUCCESS; |
return &st->iface; |
} |
|
static struct st_context_iface * |
st_api_get_current(struct st_api *stapi) |
{ |
GET_CURRENT_CONTEXT(ctx); |
struct st_context *st = (ctx) ? ctx->st : NULL; |
|
return (st) ? &st->iface : NULL; |
} |
|
static struct st_framebuffer * |
st_framebuffer_reuse_or_create(struct gl_framebuffer *fb, |
struct st_framebuffer_iface *stfbi) |
{ |
struct st_framebuffer *cur = st_ws_framebuffer(fb), *stfb = NULL; |
|
/* dummy framebuffers cant be used as st_framebuffer */ |
if (cur && &cur->Base != _mesa_get_incomplete_framebuffer() && |
cur->iface == stfbi) { |
/* reuse the current stfb */ |
st_framebuffer_reference(&stfb, cur); |
} |
else { |
/* create a new one */ |
stfb = st_framebuffer_create(stfbi); |
} |
|
return stfb; |
} |
|
static boolean |
st_api_make_current(struct st_api *stapi, struct st_context_iface *stctxi, |
struct st_framebuffer_iface *stdrawi, |
struct st_framebuffer_iface *streadi) |
{ |
struct st_context *st = (struct st_context *) stctxi; |
struct st_framebuffer *stdraw, *stread; |
boolean ret; |
|
_glapi_check_multithread(); |
|
if (st) { |
/* reuse or create the draw fb */ |
stdraw = st_framebuffer_reuse_or_create(st->ctx->WinSysDrawBuffer, |
stdrawi); |
if (streadi != stdrawi) { |
/* do the same for the read fb */ |
stread = st_framebuffer_reuse_or_create(st->ctx->WinSysReadBuffer, |
streadi); |
} |
else { |
stread = NULL; |
/* reuse the draw fb for the read fb */ |
if (stdraw) |
st_framebuffer_reference(&stread, stdraw); |
} |
|
if (stdraw && stread) { |
st_framebuffer_validate(stdraw, st); |
if (stread != stdraw) |
st_framebuffer_validate(stread, st); |
|
ret = _mesa_make_current(st->ctx, &stdraw->Base, &stread->Base); |
|
st->draw_stamp = stdraw->stamp - 1; |
st->read_stamp = stread->stamp - 1; |
st_context_validate(st, stdraw, stread); |
} |
else { |
struct gl_framebuffer *incomplete = _mesa_get_incomplete_framebuffer(); |
ret = _mesa_make_current(st->ctx, incomplete, incomplete); |
} |
|
st_framebuffer_reference(&stdraw, NULL); |
st_framebuffer_reference(&stread, NULL); |
} |
else { |
ret = _mesa_make_current(NULL, NULL, NULL); |
} |
|
return ret; |
} |
|
static st_proc_t |
st_api_get_proc_address(struct st_api *stapi, const char *procname) |
{ |
return (st_proc_t) _glapi_get_proc_address(procname); |
} |
|
static void |
st_api_destroy(struct st_api *stapi) |
{ |
} |
|
/** |
* Flush the front buffer if the current context renders to the front buffer. |
*/ |
void |
st_manager_flush_frontbuffer(struct st_context *st) |
{ |
struct st_framebuffer *stfb = st_ws_framebuffer(st->ctx->DrawBuffer); |
struct st_renderbuffer *strb = NULL; |
|
if (stfb) |
strb = st_renderbuffer(stfb->Base.Attachment[BUFFER_FRONT_LEFT].Renderbuffer); |
if (!strb) |
return; |
|
/* never a dummy fb */ |
assert(&stfb->Base != _mesa_get_incomplete_framebuffer()); |
stfb->iface->flush_front(&st->iface, stfb->iface, ST_ATTACHMENT_FRONT_LEFT); |
} |
|
/** |
* Return the surface of an EGLImage. |
* FIXME: I think this should operate on resources, not surfaces |
*/ |
struct pipe_surface * |
st_manager_get_egl_image_surface(struct st_context *st, void *eglimg) |
{ |
struct st_manager *smapi = |
(struct st_manager *) st->iface.st_context_private; |
struct st_egl_image stimg; |
struct pipe_surface *ps, surf_tmpl; |
|
if (!smapi || !smapi->get_egl_image) |
return NULL; |
|
memset(&stimg, 0, sizeof(stimg)); |
if (!smapi->get_egl_image(smapi, eglimg, &stimg)) |
return NULL; |
|
u_surface_default_template(&surf_tmpl, stimg.texture); |
surf_tmpl.u.tex.level = stimg.level; |
surf_tmpl.u.tex.first_layer = stimg.layer; |
surf_tmpl.u.tex.last_layer = stimg.layer; |
ps = st->pipe->create_surface(st->pipe, stimg.texture, &surf_tmpl); |
pipe_resource_reference(&stimg.texture, NULL); |
|
return ps; |
} |
|
/** |
* Re-validate the framebuffers. |
*/ |
void |
st_manager_validate_framebuffers(struct st_context *st) |
{ |
struct st_framebuffer *stdraw = st_ws_framebuffer(st->ctx->DrawBuffer); |
struct st_framebuffer *stread = st_ws_framebuffer(st->ctx->ReadBuffer); |
|
if (stdraw) |
st_framebuffer_validate(stdraw, st); |
if (stread && stread != stdraw) |
st_framebuffer_validate(stread, st); |
|
st_context_validate(st, stdraw, stread); |
} |
|
/** |
* Add a color renderbuffer on demand. |
*/ |
boolean |
st_manager_add_color_renderbuffer(struct st_context *st, |
struct gl_framebuffer *fb, |
gl_buffer_index idx) |
{ |
struct st_framebuffer *stfb = st_ws_framebuffer(fb); |
|
/* FBO */ |
if (!stfb) |
return FALSE; |
|
if (stfb->Base.Attachment[idx].Renderbuffer) |
return TRUE; |
|
switch (idx) { |
case BUFFER_FRONT_LEFT: |
case BUFFER_BACK_LEFT: |
case BUFFER_FRONT_RIGHT: |
case BUFFER_BACK_RIGHT: |
break; |
default: |
return FALSE; |
break; |
} |
|
if (!st_framebuffer_add_renderbuffer(stfb, idx)) |
return FALSE; |
|
st_framebuffer_update_attachments(stfb); |
|
/* |
* Force a call to the state tracker manager to validate the |
* new renderbuffer. It might be that there is a window system |
* renderbuffer available. |
*/ |
if(stfb->iface) |
stfb->iface_stamp = p_atomic_read(&stfb->iface->stamp) - 1; |
|
st_invalidate_state(st->ctx, _NEW_BUFFERS); |
|
return TRUE; |
} |
|
static const struct st_api st_gl_api = { |
"Mesa " PACKAGE_VERSION, |
ST_API_OPENGL, |
ST_PROFILE_DEFAULT_MASK | |
ST_PROFILE_OPENGL_CORE_MASK | |
ST_PROFILE_OPENGL_ES1_MASK | |
ST_PROFILE_OPENGL_ES2_MASK | |
0, |
ST_API_FEATURE_MS_VISUALS_MASK, |
st_api_destroy, |
st_api_get_proc_address, |
st_api_create_context, |
st_api_make_current, |
st_api_get_current, |
}; |
|
struct st_api * |
st_gl_api_create(void) |
{ |
return (struct st_api *) &st_gl_api; |
} |