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-rw-r--r--mesalib/src/mesa/state_tracker/st_manager.c1846
1 files changed, 923 insertions, 923 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_manager.c b/mesalib/src/mesa/state_tracker/st_manager.c
index d85bcd4f7..e126c0a1e 100644
--- a/mesalib/src/mesa/state_tracker/st_manager.c
+++ b/mesalib/src/mesa/state_tracker/st_manager.c
@@ -1,923 +1,923 @@
-/*
- * 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, flags, fence);
- if (flags & PIPE_FLUSH_RENDER_CACHE)
- 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 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;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-08 12:45:48 +0000