From 1b072e6a8a80ac63d1b3469d76d4854d5c7835c1 Mon Sep 17 00:00:00 2001 From: marha Date: Wed, 22 Jun 2011 14:05:58 +0200 Subject: mesa xkbcomp git update 22 June 2011 --- mesalib/src/mesa/state_tracker/st_manager.c | 1850 ++++++++++++++------------- 1 file changed, 927 insertions(+), 923 deletions(-) (limited to 'mesalib/src/mesa/state_tracker/st_manager.c') 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 - */ - -#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 + */ + +#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; +} -- cgit v1.2.3