diff options
Diffstat (limited to 'mesalib/src/mesa/state_tracker')
| -rw-r--r-- | mesalib/src/mesa/state_tracker/st_manager.c | 1850 |
1 files changed, 927 insertions, 923 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_manager.c b/mesalib/src/mesa/state_tracker/st_manager.c index e126c0a1e..46be55318 100644 --- a/mesalib/src/mesa/state_tracker/st_manager.c +++ b/mesalib/src/mesa/state_tracker/st_manager.c @@ -1,923 +1,927 @@ -/*
- * Mesa 3-D graphics library
- * Version: 7.9
- *
- * 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 "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"
-
-#include "main/mtypes.h"
-#include "main/context.h"
-#include "main/mfeatures.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"
-
-/**
- * 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 */
- return (struct st_framebuffer *) ((fb && !fb->Name) ? fb : 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;
-}
-
-/**
- * Validate a framebuffer to make sure up-to-date pipe_textures are used.
- */
-static void
-st_framebuffer_validate(struct st_framebuffer *stfb, struct st_context *st)
-{
- struct pipe_context *pipe = st->pipe;
- struct pipe_resource *textures[ST_ATTACHMENT_COUNT];
- uint width, height;
- unsigned i;
- boolean changed = FALSE;
-
- if (!p_atomic_read(&stfb->revalidate))
- return;
-
- /* validate the fb */
- if (!stfb->iface->validate(stfb->iface, stfb->statts, stfb->num_statts, textures))
- return;
-
- 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;
- }
-
- memset(&surf_tmpl, 0, sizeof(surf_tmpl));
- u_surface_default_template(&surf_tmpl, textures[i],
- PIPE_BIND_RENDER_TARGET);
- ps = pipe->create_surface(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) {
- st->dirty.st |= ST_NEW_FRAMEBUFFER;
- _mesa_resize_framebuffer(st->ctx, &stfb->Base, width, height);
-
- assert(stfb->Base.Width == width);
- assert(stfb->Base.Height == height);
- }
-
- p_atomic_set(&stfb->revalidate, FALSE);
-}
-
-/**
- * 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;
- }
-
- p_atomic_set(&stfb->revalidate, TRUE);
-}
-
-/**
- * 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;
- int samples;
- 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;
-
- samples = stfb->iface->visual->samples;
- if (!samples)
- samples = st_get_msaa();
-
- rb = st_new_renderbuffer_fb(format, 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) {
- mode->sampleBuffers = 1;
- mode->samples = visual->samples;
- }
-}
-
-/**
- * Determine the default draw or read buffer from a visual.
- */
-static void
-st_visual_to_default_buffer(const struct st_visual *visual,
- GLenum *buffer, GLint *index)
-{
- enum st_attachment_type statt;
- GLenum buf;
- gl_buffer_index idx;
-
- statt = visual->render_buffer;
- /* do nothing if an invalid render buffer is specified */
- if (statt == ST_ATTACHMENT_INVALID ||
- !st_visual_have_buffers(visual, 1 << statt))
- return;
-
- switch (statt) {
- case ST_ATTACHMENT_FRONT_LEFT:
- buf = GL_FRONT_LEFT;
- idx = BUFFER_FRONT_LEFT;
- break;
- case ST_ATTACHMENT_BACK_LEFT:
- buf = GL_BACK_LEFT;
- idx = BUFFER_BACK_LEFT;
- break;
- case ST_ATTACHMENT_FRONT_RIGHT:
- buf = GL_FRONT_RIGHT;
- idx = BUFFER_FRONT_RIGHT;
- break;
- case ST_ATTACHMENT_BACK_RIGHT:
- buf = GL_BACK_RIGHT;
- idx = BUFFER_BACK_RIGHT;
- break;
- default:
- buf = GL_NONE;
- idx = BUFFER_COUNT;
- break;
- }
-
- if (buf != GL_NONE) {
- if (buffer)
- *buffer = buf;
- if (index)
- *index = idx;
- }
-}
-
-/**
- * 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);
-
- /* modify the draw/read buffers of the fb */
- st_visual_to_default_buffer(stfbi->visual, &stfb->Base.ColorDrawBuffer[0],
- &stfb->Base._ColorDrawBufferIndexes[0]);
- st_visual_to_default_buffer(stfbi->visual, &stfb->Base.ColorReadBuffer,
- &stfb->Base._ColorReadBufferIndex);
-
- stfb->iface = stfbi;
-
- /* 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);
-
- st_framebuffer_update_attachments(stfb);
-
- stfb->Base.Initialized = GL_TRUE;
-
- 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_notify_invalid_framebuffer(struct st_context_iface *stctxi,
- struct st_framebuffer_iface *stfbi)
-{
- struct st_context *st = (struct st_context *) stctxi;
- struct st_framebuffer *stfb;
-
- /* either draw or read winsys fb */
- stfb = st_ws_framebuffer(st->ctx->WinSysDrawBuffer);
- if (!stfb || stfb->iface != stfbi)
- stfb = st_ws_framebuffer(st->ctx->WinSysReadBuffer);
-
- if (stfb && stfb->iface == stfbi) {
- p_atomic_set(&stfb->revalidate, TRUE);
- }
- else {
- /* This function is probably getting called when we've detected a
- * change in a window's size but the currently bound context is
- * not bound to that window.
- * If the st_framebuffer_iface structure had a pointer to the
- * corresponding st_framebuffer we'd be able to handle this.
- */
- }
-}
-
-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;
- st_flush(st, fence);
- if (flags & ST_FLUSH_FRONT)
- st_manager_flush_frontbuffer(st);
-}
-
-static boolean
-st_context_teximage(struct st_context_iface *stctxi,
- enum st_texture_type target,
- int level, enum pipe_format internal_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;
-
- switch (target) {
- 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;
- break;
- }
-
- 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;
-
- /*
- * XXX When internal_format and tex->format differ, st_finalize_texture
- * needs to allocate a new texture with internal_format and copy the
- * texture here into the new one. It will result in surface_copy being
- * called on surfaces whose formats differ.
- *
- * To avoid that, internal_format is (wrongly) ignored here. A sane fix
- * is to use a sampler view.
- */
- if (!st_sampler_compat_formats(tex->format, internal_format))
- internal_format = tex->format;
-
- if (util_format_get_component_bits(internal_format,
- UTIL_FORMAT_COLORSPACE_RGB, 3) > 0)
- internalFormat = GL_RGBA;
- else
- internalFormat = GL_RGB;
-
- texFormat = st_ChooseTextureFormat(ctx, internalFormat,
- GL_RGBA, GL_UNSIGNED_BYTE);
-
- _mesa_init_teximage_fields(ctx, target, 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;
-
- _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,
- 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;
- break;
- case ST_PROFILE_OPENGL_ES1:
- api = API_OPENGLES;
- break;
- case ST_PROFILE_OPENGL_ES2:
- api = API_OPENGLES2;
- break;
- case ST_PROFILE_OPENGL_CORE:
- default:
- return NULL;
- break;
- }
-
- pipe = smapi->screen->context_create(smapi->screen, NULL);
- if (!pipe)
- return NULL;
-
- st_visual_to_context_mode(&attribs->visual, &mode);
- st = st_create_context(api, pipe, &mode, shared_ctx);
- if (!st) {
- pipe->destroy(pipe);
- return NULL;
- }
-
- /* need to perform version check */
- if (attribs->major > 1 || attribs->minor > 0) {
- _mesa_compute_version(st->ctx);
-
- /* is the actual version less than the requested version? */
- if (st->ctx->VersionMajor * 10 + st->ctx->VersionMinor <
- attribs->major * 10 + attribs->minor) {
- 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.notify_invalid_framebuffer =
- st_context_notify_invalid_framebuffer;
- 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;
-
- return &st->iface;
-}
-
-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, *stfb;
- boolean ret;
-
- _glapi_check_multithread();
-
- if (st) {
- /* reuse/create the draw fb */
- stfb = st_ws_framebuffer(st->ctx->WinSysDrawBuffer);
- if (stfb && stfb->iface == stdrawi) {
- stdraw = NULL;
- st_framebuffer_reference(&stdraw, stfb);
- }
- else {
- stdraw = st_framebuffer_create(stdrawi);
- }
-
- /* reuse/create the read fb */
- stfb = st_ws_framebuffer(st->ctx->WinSysReadBuffer);
- if (!stfb || stfb->iface != streadi)
- stfb = stdraw;
- if (stfb && stfb->iface == streadi) {
- stread = NULL;
- st_framebuffer_reference(&stread, stfb);
- }
- else {
- stread = st_framebuffer_create(streadi);
- }
-
- if (stdraw && stread) {
- st_framebuffer_validate(stdraw, st);
- if (stread != stdraw)
- st_framebuffer_validate(stread, st);
-
- /* modify the draw/read buffers of the context */
- if (stdraw->iface) {
- st_visual_to_default_buffer(stdraw->iface->visual,
- &st->ctx->Color.DrawBuffer[0], NULL);
- }
- if (stread->iface) {
- st_visual_to_default_buffer(stread->iface->visual,
- &st->ctx->Pixel.ReadBuffer, NULL);
- }
-
- ret = _mesa_make_current(st->ctx, &stdraw->Base, &stread->Base);
- }
- 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 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 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->iface);
- stfb->iface->flush_front(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, unsigned usage)
-{
- 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;
-
- memset(&surf_tmpl, 0, sizeof(surf_tmpl));
- surf_tmpl.format = stimg.texture->format;
- surf_tmpl.usage = usage;
- 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);
-}
-
-/**
- * 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);
- st_invalidate_state(st->ctx, _NEW_BUFFERS);
-
- return TRUE;
-}
-
-static const struct st_api st_gl_api = {
- "Mesa " MESA_VERSION_STRING,
- ST_API_OPENGL,
-#if FEATURE_GL
- ST_PROFILE_DEFAULT_MASK |
-#endif
-#if FEATURE_ES1
- ST_PROFILE_OPENGL_ES1_MASK |
-#endif
-#if FEATURE_ES2
- ST_PROFILE_OPENGL_ES2_MASK |
-#endif
- 0,
- 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;
-}
+/* + * Mesa 3-D graphics library + * Version: 7.9 + * + * 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 "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" + +#include "main/mtypes.h" +#include "main/context.h" +#include "main/mfeatures.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" + +/** + * 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 */ + return (struct st_framebuffer *) ((fb && !fb->Name) ? fb : 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; +} + +/** + * Validate a framebuffer to make sure up-to-date pipe_textures are used. + */ +static void +st_framebuffer_validate(struct st_framebuffer *stfb, struct st_context *st) +{ + struct pipe_context *pipe = st->pipe; + struct pipe_resource *textures[ST_ATTACHMENT_COUNT]; + uint width, height; + unsigned i; + boolean changed = FALSE; + + if (!p_atomic_read(&stfb->revalidate)) + return; + + /* validate the fb */ + if (!stfb->iface->validate(stfb->iface, stfb->statts, stfb->num_statts, textures)) + return; + + 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; + } + + memset(&surf_tmpl, 0, sizeof(surf_tmpl)); + u_surface_default_template(&surf_tmpl, textures[i], + PIPE_BIND_RENDER_TARGET); + ps = pipe->create_surface(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) { + st->dirty.st |= ST_NEW_FRAMEBUFFER; + _mesa_resize_framebuffer(st->ctx, &stfb->Base, width, height); + + assert(stfb->Base.Width == width); + assert(stfb->Base.Height == height); + } + + p_atomic_set(&stfb->revalidate, FALSE); +} + +/** + * 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; + } + + p_atomic_set(&stfb->revalidate, TRUE); +} + +/** + * 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; + int samples; + 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; + + samples = stfb->iface->visual->samples; + if (!samples) + samples = st_get_msaa(); + + rb = st_new_renderbuffer_fb(format, 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) { + mode->sampleBuffers = 1; + mode->samples = visual->samples; + } +} + +/** + * Determine the default draw or read buffer from a visual. + */ +static void +st_visual_to_default_buffer(const struct st_visual *visual, + GLenum *buffer, GLint *index) +{ + enum st_attachment_type statt; + GLenum buf; + gl_buffer_index idx; + + statt = visual->render_buffer; + /* do nothing if an invalid render buffer is specified */ + if (statt == ST_ATTACHMENT_INVALID || + !st_visual_have_buffers(visual, 1 << statt)) + return; + + switch (statt) { + case ST_ATTACHMENT_FRONT_LEFT: + buf = GL_FRONT_LEFT; + idx = BUFFER_FRONT_LEFT; + break; + case ST_ATTACHMENT_BACK_LEFT: + buf = GL_BACK_LEFT; + idx = BUFFER_BACK_LEFT; + break; + case ST_ATTACHMENT_FRONT_RIGHT: + buf = GL_FRONT_RIGHT; + idx = BUFFER_FRONT_RIGHT; + break; + case ST_ATTACHMENT_BACK_RIGHT: + buf = GL_BACK_RIGHT; + idx = BUFFER_BACK_RIGHT; + break; + default: + buf = GL_NONE; + idx = BUFFER_COUNT; + break; + } + + if (buf != GL_NONE) { + if (buffer) + *buffer = buf; + if (index) + *index = idx; + } +} + +/** + * 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); + + /* modify the draw/read buffers of the fb */ + st_visual_to_default_buffer(stfbi->visual, &stfb->Base.ColorDrawBuffer[0], + &stfb->Base._ColorDrawBufferIndexes[0]); + st_visual_to_default_buffer(stfbi->visual, &stfb->Base.ColorReadBuffer, + &stfb->Base._ColorReadBufferIndex); + + stfb->iface = stfbi; + + /* 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); + + st_framebuffer_update_attachments(stfb); + + stfb->Base.Initialized = GL_TRUE; + + 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_notify_invalid_framebuffer(struct st_context_iface *stctxi, + struct st_framebuffer_iface *stfbi) +{ + struct st_context *st = (struct st_context *) stctxi; + struct st_framebuffer *stfb; + + /* either draw or read winsys fb */ + stfb = st_ws_framebuffer(st->ctx->WinSysDrawBuffer); + if (!stfb || stfb->iface != stfbi) + stfb = st_ws_framebuffer(st->ctx->WinSysReadBuffer); + + if (stfb && stfb->iface == stfbi) { + p_atomic_set(&stfb->revalidate, TRUE); + } + else { + /* This function is probably getting called when we've detected a + * change in a window's size but the currently bound context is + * not bound to that window. + * If the st_framebuffer_iface structure had a pointer to the + * corresponding st_framebuffer we'd be able to handle this. + */ + } +} + +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; + st_flush(st, fence); + if (flags & ST_FLUSH_FRONT) + st_manager_flush_frontbuffer(st); +} + +static boolean +st_context_teximage(struct st_context_iface *stctxi, + enum st_texture_type target, + int level, enum pipe_format internal_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; + + switch (target) { + 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; + break; + } + + 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; + + /* + * XXX When internal_format and tex->format differ, st_finalize_texture + * needs to allocate a new texture with internal_format and copy the + * texture here into the new one. It will result in surface_copy being + * called on surfaces whose formats differ. + * + * To avoid that, internal_format is (wrongly) ignored here. A sane fix + * is to use a sampler view. + */ + if (!st_sampler_compat_formats(tex->format, internal_format)) + internal_format = tex->format; + + if (util_format_get_component_bits(internal_format, + UTIL_FORMAT_COLORSPACE_RGB, 3) > 0) + internalFormat = GL_RGBA; + else + internalFormat = GL_RGB; + + texFormat = st_ChooseTextureFormat(ctx, internalFormat, + GL_RGBA, GL_UNSIGNED_BYTE); + + _mesa_init_teximage_fields(ctx, target, 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; + + _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, + 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; + break; + case ST_PROFILE_OPENGL_ES1: + api = API_OPENGLES; + break; + case ST_PROFILE_OPENGL_ES2: + api = API_OPENGLES2; + break; + case ST_PROFILE_OPENGL_CORE: + default: + return NULL; + break; + } + + pipe = smapi->screen->context_create(smapi->screen, NULL); + if (!pipe) + return NULL; + + st_visual_to_context_mode(&attribs->visual, &mode); + st = st_create_context(api, pipe, &mode, shared_ctx); + if (!st) { + pipe->destroy(pipe); + return NULL; + } + + /* need to perform version check */ + if (attribs->major > 1 || attribs->minor > 0) { + _mesa_compute_version(st->ctx); + + /* is the actual version less than the requested version? */ + if (st->ctx->VersionMajor * 10 + st->ctx->VersionMinor < + attribs->major * 10 + attribs->minor) { + 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.notify_invalid_framebuffer = + st_context_notify_invalid_framebuffer; + 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; + + 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 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, *stfb; + boolean ret; + + _glapi_check_multithread(); + + if (st) { + /* reuse/create the draw fb */ + stfb = st_ws_framebuffer(st->ctx->WinSysDrawBuffer); + if (stfb && stfb->iface == stdrawi) { + stdraw = NULL; + st_framebuffer_reference(&stdraw, stfb); + } + else { + stdraw = st_framebuffer_create(stdrawi); + } + + /* reuse/create the read fb */ + stfb = st_ws_framebuffer(st->ctx->WinSysReadBuffer); + if (!stfb || stfb->iface != streadi) + stfb = stdraw; + if (stfb && stfb->iface == streadi) { + stread = NULL; + st_framebuffer_reference(&stread, stfb); + } + else { + stread = st_framebuffer_create(streadi); + } + + if (stdraw && stread) { + if (stctxi != st_api_get_current(stapi)) { + p_atomic_set(&stdraw->revalidate, TRUE); + p_atomic_set(&stread->revalidate, TRUE); + } + st_framebuffer_validate(stdraw, st); + if (stread != stdraw) + st_framebuffer_validate(stread, st); + + /* modify the draw/read buffers of the context */ + if (stdraw->iface) { + st_visual_to_default_buffer(stdraw->iface->visual, + &st->ctx->Color.DrawBuffer[0], NULL); + } + if (stread->iface) { + st_visual_to_default_buffer(stread->iface->visual, + &st->ctx->Pixel.ReadBuffer, NULL); + } + + ret = _mesa_make_current(st->ctx, &stdraw->Base, &stread->Base); + } + 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->iface); + stfb->iface->flush_front(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, unsigned usage) +{ + 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; + + memset(&surf_tmpl, 0, sizeof(surf_tmpl)); + surf_tmpl.format = stimg.texture->format; + surf_tmpl.usage = usage; + 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); +} + +/** + * 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); + st_invalidate_state(st->ctx, _NEW_BUFFERS); + + return TRUE; +} + +static const struct st_api st_gl_api = { + "Mesa " MESA_VERSION_STRING, + ST_API_OPENGL, +#if FEATURE_GL + ST_PROFILE_DEFAULT_MASK | +#endif +#if FEATURE_ES1 + ST_PROFILE_OPENGL_ES1_MASK | +#endif +#if FEATURE_ES2 + ST_PROFILE_OPENGL_ES2_MASK | +#endif + 0, + 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; +} |