WebSVN – Kolibri OS – Diff – /contrib/sdk/sources/Mesa/src/mesa/state_tracker/st_manager.c


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

Rev 4358	Rev 5063
1	/*	1	/*
2	* Mesa 3-D graphics library	2	* Mesa 3-D graphics library
3	*	3	*
4	* Copyright (C) 2010 LunarG Inc.	4	* Copyright (C) 2010 LunarG Inc.
5	*	5	*
6	* Permission is hereby granted, free of charge, to any person obtaining a	6	* Permission is hereby granted, free of charge, to any person obtaining a
7	* copy of this software and associated documentation files (the "Software"),	7	* copy of this software and associated documentation files (the "Software"),
8	* to deal in the Software without restriction, including without limitation	8	* to deal in the Software without restriction, including without limitation
9	* the rights to use, copy, modify, merge, publish, distribute, sublicense,	9	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
10	* and/or sell copies of the Software, and to permit persons to whom the	10	* and/or sell copies of the Software, and to permit persons to whom the
11	* Software is furnished to do so, subject to the following conditions:	11	* Software is furnished to do so, subject to the following conditions:
12	*	12	*
13	* The above copyright notice and this permission notice shall be included	13	* The above copyright notice and this permission notice shall be included
14	* in all copies or substantial portions of the Software.	14	* in all copies or substantial portions of the Software.
15	*	15	*
16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR	16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,	17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL	18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER	19	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING	20	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21	* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER	21	* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22	* DEALINGS IN THE SOFTWARE.	22	* DEALINGS IN THE SOFTWARE.
23	*	23	*
24	* Authors:	24	* Authors:
25	* Chia-I Wu	25	* Chia-I Wu
26	*/	26	*/
27		27
28	#include "main/mtypes.h"	28	#include "main/mtypes.h"
29	#include "main/context.h"	29	#include "main/context.h"
30	#include "main/texobj.h"	30	#include "main/texobj.h"
31	#include "main/teximage.h"	31	#include "main/teximage.h"
32	#include "main/texstate.h"	32	#include "main/texstate.h"
33	#include "main/framebuffer.h"	33	#include "main/framebuffer.h"
34	#include "main/fbobject.h"	34	#include "main/fbobject.h"
35	#include "main/renderbuffer.h"	35	#include "main/renderbuffer.h"
36	#include "main/version.h"	36	#include "main/version.h"
37	#include "st_texture.h"	37	#include "st_texture.h"
38		38
39	#include "st_context.h"	39	#include "st_context.h"
40	#include "st_format.h"	40	#include "st_format.h"
41	#include "st_cb_fbo.h"	41	#include "st_cb_fbo.h"
42	#include "st_cb_flush.h"	42	#include "st_cb_flush.h"
43	#include "st_manager.h"	43	#include "st_manager.h"
44		44
45	#include "state_tracker/st_gl_api.h"	45	#include "state_tracker/st_gl_api.h"
46		46
47	#include "pipe/p_context.h"	47	#include "pipe/p_context.h"
48	#include "pipe/p_screen.h"	48	#include "pipe/p_screen.h"
49	#include "util/u_format.h"	49	#include "util/u_format.h"
50	#include "util/u_pointer.h"	50	#include "util/u_pointer.h"
51	#include "util/u_inlines.h"	51	#include "util/u_inlines.h"
52	#include "util/u_atomic.h"	52	#include "util/u_atomic.h"
53	#include "util/u_surface.h"	53	#include "util/u_surface.h"
54		54
55	/**	55	/**
56	* Cast wrapper to convert a struct gl_framebuffer to an st_framebuffer.	56	* Cast wrapper to convert a struct gl_framebuffer to an st_framebuffer.
57	* Return NULL if the struct gl_framebuffer is a user-created framebuffer.	57	* Return NULL if the struct gl_framebuffer is a user-created framebuffer.
58	* We'll only return non-null for window system framebuffers.	58	* We'll only return non-null for window system framebuffers.
59	* Note that this function may fail.	59	* Note that this function may fail.
60	*/	60	*/
61	static INLINE struct st_framebuffer *	61	static INLINE struct st_framebuffer *
62	st_ws_framebuffer(struct gl_framebuffer *fb)	62	st_ws_framebuffer(struct gl_framebuffer *fb)
63	{	63	{
64	/* FBO cannot be casted. See st_new_framebuffer */	64	/* FBO cannot be casted. See st_new_framebuffer */
65	if (fb && _mesa_is_winsys_fbo(fb))	65	if (fb && _mesa_is_winsys_fbo(fb))
66	return (struct st_framebuffer *) fb;	66	return (struct st_framebuffer *) fb;
67	return NULL;	67	return NULL;
68	}	68	}
69		69
70	/**	70	/**
71	* Map an attachment to a buffer index.	71	* Map an attachment to a buffer index.
72	*/	72	*/
73	static INLINE gl_buffer_index	73	static INLINE gl_buffer_index
74	attachment_to_buffer_index(enum st_attachment_type statt)	74	attachment_to_buffer_index(enum st_attachment_type statt)
75	{	75	{
76	gl_buffer_index index;	76	gl_buffer_index index;
77		77
78	switch (statt) {	78	switch (statt) {
79	case ST_ATTACHMENT_FRONT_LEFT:	79	case ST_ATTACHMENT_FRONT_LEFT:
80	index = BUFFER_FRONT_LEFT;	80	index = BUFFER_FRONT_LEFT;
81	break;	81	break;
82	case ST_ATTACHMENT_BACK_LEFT:	82	case ST_ATTACHMENT_BACK_LEFT:
83	index = BUFFER_BACK_LEFT;	83	index = BUFFER_BACK_LEFT;
84	break;	84	break;
85	case ST_ATTACHMENT_FRONT_RIGHT:	85	case ST_ATTACHMENT_FRONT_RIGHT:
86	index = BUFFER_FRONT_RIGHT;	86	index = BUFFER_FRONT_RIGHT;
87	break;	87	break;
88	case ST_ATTACHMENT_BACK_RIGHT:	88	case ST_ATTACHMENT_BACK_RIGHT:
89	index = BUFFER_BACK_RIGHT;	89	index = BUFFER_BACK_RIGHT;
90	break;	90	break;
91	case ST_ATTACHMENT_DEPTH_STENCIL:	91	case ST_ATTACHMENT_DEPTH_STENCIL:
92	index = BUFFER_DEPTH;	92	index = BUFFER_DEPTH;
93	break;	93	break;
94	case ST_ATTACHMENT_ACCUM:	94	case ST_ATTACHMENT_ACCUM:
95	index = BUFFER_ACCUM;	95	index = BUFFER_ACCUM;
96	break;	96	break;
97	case ST_ATTACHMENT_SAMPLE:	97	case ST_ATTACHMENT_SAMPLE:
98	default:	98	default:
99	index = BUFFER_COUNT;	99	index = BUFFER_COUNT;
100	break;	100	break;
101	}	101	}
102		102
103	return index;	103	return index;
104	}	104	}
105		105
106	/**	106	/**
107	* Map a buffer index to an attachment.	107	* Map a buffer index to an attachment.
108	*/	108	*/
109	static INLINE enum st_attachment_type	109	static INLINE enum st_attachment_type
110	buffer_index_to_attachment(gl_buffer_index index)	110	buffer_index_to_attachment(gl_buffer_index index)
111	{	111	{
112	enum st_attachment_type statt;	112	enum st_attachment_type statt;
113		113
114	switch (index) {	114	switch (index) {
115	case BUFFER_FRONT_LEFT:	115	case BUFFER_FRONT_LEFT:
116	statt = ST_ATTACHMENT_FRONT_LEFT;	116	statt = ST_ATTACHMENT_FRONT_LEFT;
117	break;	117	break;
118	case BUFFER_BACK_LEFT:	118	case BUFFER_BACK_LEFT:
119	statt = ST_ATTACHMENT_BACK_LEFT;	119	statt = ST_ATTACHMENT_BACK_LEFT;
120	break;	120	break;
121	case BUFFER_FRONT_RIGHT:	121	case BUFFER_FRONT_RIGHT:
122	statt = ST_ATTACHMENT_FRONT_RIGHT;	122	statt = ST_ATTACHMENT_FRONT_RIGHT;
123	break;	123	break;
124	case BUFFER_BACK_RIGHT:	124	case BUFFER_BACK_RIGHT:
125	statt = ST_ATTACHMENT_BACK_RIGHT;	125	statt = ST_ATTACHMENT_BACK_RIGHT;
126	break;	126	break;
127	case BUFFER_DEPTH:	127	case BUFFER_DEPTH:
128	statt = ST_ATTACHMENT_DEPTH_STENCIL;	128	statt = ST_ATTACHMENT_DEPTH_STENCIL;
129	break;	129	break;
130	case BUFFER_ACCUM:	130	case BUFFER_ACCUM:
131	statt = ST_ATTACHMENT_ACCUM;	131	statt = ST_ATTACHMENT_ACCUM;
132	break;	132	break;
133	default:	133	default:
134	statt = ST_ATTACHMENT_INVALID;	134	statt = ST_ATTACHMENT_INVALID;
135	break;	135	break;
136	}	136	}
137		137
138	return statt;	138	return statt;
139	}	139	}
140		140
141	/**	141	/**
142	* Make sure a context picks up the latest cached state of the	142	* Make sure a context picks up the latest cached state of the
143	* drawables it binds to.	143	* drawables it binds to.
144	*/	144	*/
145	static void	145	static void
146	st_context_validate(struct st_context *st,	146	st_context_validate(struct st_context *st,
147	struct st_framebuffer *stdraw,	147	struct st_framebuffer *stdraw,
148	struct st_framebuffer *stread)	148	struct st_framebuffer *stread)
149	{	149	{
150	if (stdraw && stdraw->stamp != st->draw_stamp) {	150	if (stdraw && stdraw->stamp != st->draw_stamp) {
151	st->dirty.st \|= ST_NEW_FRAMEBUFFER;	151	st->dirty.st \|= ST_NEW_FRAMEBUFFER;
152	_mesa_resize_framebuffer(st->ctx, &stdraw->Base,	152	_mesa_resize_framebuffer(st->ctx, &stdraw->Base,
153	stdraw->Base.Width,	153	stdraw->Base.Width,
154	stdraw->Base.Height);	154	stdraw->Base.Height);
155	st->draw_stamp = stdraw->stamp;	155	st->draw_stamp = stdraw->stamp;
156	}	156	}
157		157
158	if (stread && stread->stamp != st->read_stamp) {	158	if (stread && stread->stamp != st->read_stamp) {
159	if (stread != stdraw) {	159	if (stread != stdraw) {
160	st->dirty.st \|= ST_NEW_FRAMEBUFFER;	160	st->dirty.st \|= ST_NEW_FRAMEBUFFER;
161	_mesa_resize_framebuffer(st->ctx, &stread->Base,	161	_mesa_resize_framebuffer(st->ctx, &stread->Base,
162	stread->Base.Width,	162	stread->Base.Width,
163	stread->Base.Height);	163	stread->Base.Height);
164	}	164	}
165	st->read_stamp = stread->stamp;	165	st->read_stamp = stread->stamp;
166	}	166	}
167	}	167	}
168		168
169	/**	169	/**
170	* Validate a framebuffer to make sure up-to-date pipe_textures are used.	170	* Validate a framebuffer to make sure up-to-date pipe_textures are used.
171	* The context is only used for creating pipe surfaces and for calling	171	* The context is only used for creating pipe surfaces and for calling
172	* _mesa_resize_framebuffer().	172	* _mesa_resize_framebuffer().
173	* (That should probably be rethought, since those surfaces become	173	* (That should probably be rethought, since those surfaces become
174	* drawable state, not context state, and can be freed by another pipe	174	* drawable state, not context state, and can be freed by another pipe
175	* context).	175	* context).
176	*/	176	*/
177	static void	177	static void
178	st_framebuffer_validate(struct st_framebuffer *stfb,	178	st_framebuffer_validate(struct st_framebuffer *stfb,
179	struct st_context *st)	179	struct st_context *st)
180	{	180	{
181	struct pipe_resource *textures[ST_ATTACHMENT_COUNT];	181	struct pipe_resource *textures[ST_ATTACHMENT_COUNT];
182	uint width, height;	182	uint width, height;
183	unsigned i;	183	unsigned i;
184	boolean changed = FALSE;	184	boolean changed = FALSE;
185	int32_t new_stamp = p_atomic_read(&stfb->iface->stamp);	185	int32_t new_stamp = p_atomic_read(&stfb->iface->stamp);
186		186
187	if (stfb->iface_stamp == new_stamp)	187	if (stfb->iface_stamp == new_stamp)
188	return;	188	return;
189		189
190	/* validate the fb */	190	/* validate the fb */
191	do {	191	do {
192	if (!stfb->iface->validate(&st->iface, stfb->iface, stfb->statts,	192	if (!stfb->iface->validate(&st->iface, stfb->iface, stfb->statts,
193	stfb->num_statts, textures))	193	stfb->num_statts, textures))
194	return;	194	return;
195		195
196	stfb->iface_stamp = new_stamp;	196	stfb->iface_stamp = new_stamp;
197	new_stamp = p_atomic_read(&stfb->iface->stamp);	197	new_stamp = p_atomic_read(&stfb->iface->stamp);
198	} while(stfb->iface_stamp != new_stamp);	198	} while(stfb->iface_stamp != new_stamp);
199		199
200	width = stfb->Base.Width;	200	width = stfb->Base.Width;
201	height = stfb->Base.Height;	201	height = stfb->Base.Height;
202		202
203	for (i = 0; i < stfb->num_statts; i++) {	203	for (i = 0; i < stfb->num_statts; i++) {
204	struct st_renderbuffer *strb;	204	struct st_renderbuffer *strb;
205	struct pipe_surface *ps, surf_tmpl;	205	struct pipe_surface *ps, surf_tmpl;
206	gl_buffer_index idx;	206	gl_buffer_index idx;
207		207
208	if (!textures[i])	208	if (!textures[i])
209	continue;	209	continue;
210		210
211	idx = attachment_to_buffer_index(stfb->statts[i]);	211	idx = attachment_to_buffer_index(stfb->statts[i]);
212	if (idx >= BUFFER_COUNT) {	212	if (idx >= BUFFER_COUNT) {
213	pipe_resource_reference(&textures[i], NULL);	213	pipe_resource_reference(&textures[i], NULL);
214	continue;	214	continue;
215	}	215	}
216		216
217	strb = st_renderbuffer(stfb->Base.Attachment[idx].Renderbuffer);	217	strb = st_renderbuffer(stfb->Base.Attachment[idx].Renderbuffer);
218	assert(strb);	218	assert(strb);
219	if (strb->texture == textures[i]) {	219	if (strb->texture == textures[i]) {
220	pipe_resource_reference(&textures[i], NULL);	220	pipe_resource_reference(&textures[i], NULL);
221	continue;	221	continue;
222	}	222	}
223		223
224	u_surface_default_template(&surf_tmpl, textures[i]);	224	u_surface_default_template(&surf_tmpl, textures[i]);
225	ps = st->pipe->create_surface(st->pipe, textures[i], &surf_tmpl);	225	ps = st->pipe->create_surface(st->pipe, textures[i], &surf_tmpl);
226	if (ps) {	226	if (ps) {
227	pipe_surface_reference(&strb->surface, ps);	227	pipe_surface_reference(&strb->surface, ps);
228	pipe_resource_reference(&strb->texture, ps->texture);	228	pipe_resource_reference(&strb->texture, ps->texture);
229	/* ownership transfered */	229	/* ownership transfered */
230	pipe_surface_reference(&ps, NULL);	230	pipe_surface_reference(&ps, NULL);
231		231
232	changed = TRUE;	232	changed = TRUE;
233		233
234	strb->Base.Width = strb->surface->width;	234	strb->Base.Width = strb->surface->width;
235	strb->Base.Height = strb->surface->height;	235	strb->Base.Height = strb->surface->height;
236		236
237	width = strb->Base.Width;	237	width = strb->Base.Width;
238	height = strb->Base.Height;	238	height = strb->Base.Height;
239	}	239	}
240		240
241	pipe_resource_reference(&textures[i], NULL);	241	pipe_resource_reference(&textures[i], NULL);
242	}	242	}
243		243
244	if (changed) {	244	if (changed) {
245	++stfb->stamp;	245	++stfb->stamp;
246	_mesa_resize_framebuffer(st->ctx, &stfb->Base, width, height);	246	_mesa_resize_framebuffer(st->ctx, &stfb->Base, width, height);
247	}	247	}
248	}	248	}
249		249
250	/**	250	/**
251	* Update the attachments to validate by looping the existing renderbuffers.	251	* Update the attachments to validate by looping the existing renderbuffers.
252	*/	252	*/
253	static void	253	static void
254	st_framebuffer_update_attachments(struct st_framebuffer *stfb)	254	st_framebuffer_update_attachments(struct st_framebuffer *stfb)
255	{	255	{
256	gl_buffer_index idx;	256	gl_buffer_index idx;
257		257
258	stfb->num_statts = 0;	258	stfb->num_statts = 0;
259	for (idx = 0; idx < BUFFER_COUNT; idx++) {	259	for (idx = 0; idx < BUFFER_COUNT; idx++) {
260	struct st_renderbuffer *strb;	260	struct st_renderbuffer *strb;
261	enum st_attachment_type statt;	261	enum st_attachment_type statt;
262		262
263	strb = st_renderbuffer(stfb->Base.Attachment[idx].Renderbuffer);	263	strb = st_renderbuffer(stfb->Base.Attachment[idx].Renderbuffer);
264	if (!strb \|\| strb->software)	264	if (!strb \|\| strb->software)
265	continue;	265	continue;
266		266
267	statt = buffer_index_to_attachment(idx);	267	statt = buffer_index_to_attachment(idx);
268	if (statt != ST_ATTACHMENT_INVALID &&	268	if (statt != ST_ATTACHMENT_INVALID &&
269	st_visual_have_buffers(stfb->iface->visual, 1 << statt))	269	st_visual_have_buffers(stfb->iface->visual, 1 << statt))
270	stfb->statts[stfb->num_statts++] = statt;	270	stfb->statts[stfb->num_statts++] = statt;
271	}	271	}
272	stfb->stamp++;	272	stfb->stamp++;
273	}	273	}
274		274
275	/**	275	/**
276	* Add a renderbuffer to the framebuffer.	276	* Add a renderbuffer to the framebuffer.
277	*/	277	*/
278	static boolean	278	static boolean
279	st_framebuffer_add_renderbuffer(struct st_framebuffer *stfb,	279	st_framebuffer_add_renderbuffer(struct st_framebuffer *stfb,
280	gl_buffer_index idx)	280	gl_buffer_index idx)
281	{	281	{
282	struct gl_renderbuffer *rb;	282	struct gl_renderbuffer *rb;
283	enum pipe_format format;	283	enum pipe_format format;
284	boolean sw;	284	boolean sw;
285		285
286	if (!stfb->iface)	286	if (!stfb->iface)
287	return FALSE;	287	return FALSE;
288		288
289	/* do not distinguish depth/stencil buffers */	289	/* do not distinguish depth/stencil buffers */
290	if (idx == BUFFER_STENCIL)	290	if (idx == BUFFER_STENCIL)
291	idx = BUFFER_DEPTH;	291	idx = BUFFER_DEPTH;
292		292
293	switch (idx) {	293	switch (idx) {
294	case BUFFER_DEPTH:	294	case BUFFER_DEPTH:
295	format = stfb->iface->visual->depth_stencil_format;	295	format = stfb->iface->visual->depth_stencil_format;
296	sw = FALSE;	296	sw = FALSE;
297	break;	297	break;
298	case BUFFER_ACCUM:	298	case BUFFER_ACCUM:
299	format = stfb->iface->visual->accum_format;	299	format = stfb->iface->visual->accum_format;
300	sw = TRUE;	300	sw = TRUE;
301	break;	301	break;
302	default:	302	default:
303	format = stfb->iface->visual->color_format;	303	format = stfb->iface->visual->color_format;
304	sw = FALSE;	304	sw = FALSE;
305	break;	305	break;
306	}	306	}
307		307
308	if (format == PIPE_FORMAT_NONE)	308	if (format == PIPE_FORMAT_NONE)
309	return FALSE;	309	return FALSE;
310		310
311	rb = st_new_renderbuffer_fb(format, stfb->iface->visual->samples, sw);	311	rb = st_new_renderbuffer_fb(format, stfb->iface->visual->samples, sw);
312	if (!rb)	312	if (!rb)
313	return FALSE;	313	return FALSE;
314		314
315	if (idx != BUFFER_DEPTH) {	315	if (idx != BUFFER_DEPTH) {
316	_mesa_add_renderbuffer(&stfb->Base, idx, rb);	316	_mesa_add_renderbuffer(&stfb->Base, idx, rb);
317	}	317	}
318	else {	318	else {
319	if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 0))	319	if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 0))
320	_mesa_add_renderbuffer(&stfb->Base, BUFFER_DEPTH, rb);	320	_mesa_add_renderbuffer(&stfb->Base, BUFFER_DEPTH, rb);
321	if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 1))	321	if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 1))
322	_mesa_add_renderbuffer(&stfb->Base, BUFFER_STENCIL, rb);	322	_mesa_add_renderbuffer(&stfb->Base, BUFFER_STENCIL, rb);
323	}	323	}
324		324
325	return TRUE;	325	return TRUE;
326	}	326	}
327		327
328	/**	328	/**
329	* Intialize a struct gl_config from a visual.	329	* Intialize a struct gl_config from a visual.
330	*/	330	*/
331	static void	331	static void
332	st_visual_to_context_mode(const struct st_visual *visual,	332	st_visual_to_context_mode(const struct st_visual *visual,
333	struct gl_config *mode)	333	struct gl_config *mode)
334	{	334	{
335	memset(mode, 0, sizeof(*mode));	335	memset(mode, 0, sizeof(*mode));
336		336
337	if (st_visual_have_buffers(visual, ST_ATTACHMENT_BACK_LEFT_MASK))	337	if (st_visual_have_buffers(visual, ST_ATTACHMENT_BACK_LEFT_MASK))
338	mode->doubleBufferMode = GL_TRUE;	338	mode->doubleBufferMode = GL_TRUE;
339	if (st_visual_have_buffers(visual,	339	if (st_visual_have_buffers(visual,
340	ST_ATTACHMENT_FRONT_RIGHT_MASK \| ST_ATTACHMENT_BACK_RIGHT_MASK))	340	ST_ATTACHMENT_FRONT_RIGHT_MASK \| ST_ATTACHMENT_BACK_RIGHT_MASK))
341	mode->stereoMode = GL_TRUE;	341	mode->stereoMode = GL_TRUE;
342		342
343	if (visual->color_format != PIPE_FORMAT_NONE) {	343	if (visual->color_format != PIPE_FORMAT_NONE) {
344	mode->rgbMode = GL_TRUE;	344	mode->rgbMode = GL_TRUE;
345		345
346	mode->redBits =	346	mode->redBits =
347	util_format_get_component_bits(visual->color_format,	347	util_format_get_component_bits(visual->color_format,
348	UTIL_FORMAT_COLORSPACE_RGB, 0);	348	UTIL_FORMAT_COLORSPACE_RGB, 0);
349	mode->greenBits =	349	mode->greenBits =
350	util_format_get_component_bits(visual->color_format,	350	util_format_get_component_bits(visual->color_format,
351	UTIL_FORMAT_COLORSPACE_RGB, 1);	351	UTIL_FORMAT_COLORSPACE_RGB, 1);
352	mode->blueBits =	352	mode->blueBits =
353	util_format_get_component_bits(visual->color_format,	353	util_format_get_component_bits(visual->color_format,
354	UTIL_FORMAT_COLORSPACE_RGB, 2);	354	UTIL_FORMAT_COLORSPACE_RGB, 2);
355	mode->alphaBits =	355	mode->alphaBits =
356	util_format_get_component_bits(visual->color_format,	356	util_format_get_component_bits(visual->color_format,
357	UTIL_FORMAT_COLORSPACE_RGB, 3);	357	UTIL_FORMAT_COLORSPACE_RGB, 3);
358		358
359	mode->rgbBits = mode->redBits +	359	mode->rgbBits = mode->redBits +
360	mode->greenBits + mode->blueBits + mode->alphaBits;	360	mode->greenBits + mode->blueBits + mode->alphaBits;
361	}	361	}
362		362
363	if (visual->depth_stencil_format != PIPE_FORMAT_NONE) {	363	if (visual->depth_stencil_format != PIPE_FORMAT_NONE) {
364	mode->depthBits =	364	mode->depthBits =
365	util_format_get_component_bits(visual->depth_stencil_format,	365	util_format_get_component_bits(visual->depth_stencil_format,
366	UTIL_FORMAT_COLORSPACE_ZS, 0);	366	UTIL_FORMAT_COLORSPACE_ZS, 0);
367	mode->stencilBits =	367	mode->stencilBits =
368	util_format_get_component_bits(visual->depth_stencil_format,	368	util_format_get_component_bits(visual->depth_stencil_format,
369	UTIL_FORMAT_COLORSPACE_ZS, 1);	369	UTIL_FORMAT_COLORSPACE_ZS, 1);
370		370
371	mode->haveDepthBuffer = mode->depthBits > 0;	371	mode->haveDepthBuffer = mode->depthBits > 0;
372	mode->haveStencilBuffer = mode->stencilBits > 0;	372	mode->haveStencilBuffer = mode->stencilBits > 0;
373	}	373	}
374		374
375	if (visual->accum_format != PIPE_FORMAT_NONE) {	375	if (visual->accum_format != PIPE_FORMAT_NONE) {
376	mode->haveAccumBuffer = GL_TRUE;	376	mode->haveAccumBuffer = GL_TRUE;
377		377
378	mode->accumRedBits =	378	mode->accumRedBits =
379	util_format_get_component_bits(visual->accum_format,	379	util_format_get_component_bits(visual->accum_format,
380	UTIL_FORMAT_COLORSPACE_RGB, 0);	380	UTIL_FORMAT_COLORSPACE_RGB, 0);
381	mode->accumGreenBits =	381	mode->accumGreenBits =
382	util_format_get_component_bits(visual->accum_format,	382	util_format_get_component_bits(visual->accum_format,
383	UTIL_FORMAT_COLORSPACE_RGB, 1);	383	UTIL_FORMAT_COLORSPACE_RGB, 1);
384	mode->accumBlueBits =	384	mode->accumBlueBits =
385	util_format_get_component_bits(visual->accum_format,	385	util_format_get_component_bits(visual->accum_format,
386	UTIL_FORMAT_COLORSPACE_RGB, 2);	386	UTIL_FORMAT_COLORSPACE_RGB, 2);
387	mode->accumAlphaBits =	387	mode->accumAlphaBits =
388	util_format_get_component_bits(visual->accum_format,	388	util_format_get_component_bits(visual->accum_format,
389	UTIL_FORMAT_COLORSPACE_RGB, 3);	389	UTIL_FORMAT_COLORSPACE_RGB, 3);
390	}	390	}
391		391
392	if (visual->samples > 1) {	392	if (visual->samples > 1) {
393	mode->sampleBuffers = 1;	393	mode->sampleBuffers = 1;
394	mode->samples = visual->samples;	394	mode->samples = visual->samples;
395	}	395	}
396	}	396	}
397		397
398	/**	398	/**
399	* Create a framebuffer from a manager interface.	399	* Create a framebuffer from a manager interface.
400	*/	400	*/
401	static struct st_framebuffer *	401	static struct st_framebuffer *
402	st_framebuffer_create(struct st_framebuffer_iface *stfbi)	402	st_framebuffer_create(struct st_framebuffer_iface *stfbi)
403	{	403	{
404	struct st_framebuffer *stfb;	404	struct st_framebuffer *stfb;
405	struct gl_config mode;	405	struct gl_config mode;
406	gl_buffer_index idx;	406	gl_buffer_index idx;
407		407
408	if (!stfbi)	408	if (!stfbi)
409	return NULL;	409	return NULL;
410		410
411	stfb = CALLOC_STRUCT(st_framebuffer);	411	stfb = CALLOC_STRUCT(st_framebuffer);
412	if (!stfb)	412	if (!stfb)
413	return NULL;	413	return NULL;
414		414
415	st_visual_to_context_mode(stfbi->visual, &mode);	415	st_visual_to_context_mode(stfbi->visual, &mode);
416	_mesa_initialize_window_framebuffer(&stfb->Base, &mode);	416	_mesa_initialize_window_framebuffer(&stfb->Base, &mode);
417		417
418	stfb->iface = stfbi;	418	stfb->iface = stfbi;
419	stfb->iface_stamp = p_atomic_read(&stfbi->stamp) - 1;	419	stfb->iface_stamp = p_atomic_read(&stfbi->stamp) - 1;
420		420
421	/* add the color buffer */	421	/* add the color buffer */
422	idx = stfb->Base._ColorDrawBufferIndexes[0];	422	idx = stfb->Base._ColorDrawBufferIndexes[0];
423	if (!st_framebuffer_add_renderbuffer(stfb, idx)) {	423	if (!st_framebuffer_add_renderbuffer(stfb, idx)) {
424	free(stfb);	424	free(stfb);
425	return NULL;	425	return NULL;
426	}	426	}
427		427
428	st_framebuffer_add_renderbuffer(stfb, BUFFER_DEPTH);	428	st_framebuffer_add_renderbuffer(stfb, BUFFER_DEPTH);
429	st_framebuffer_add_renderbuffer(stfb, BUFFER_ACCUM);	429	st_framebuffer_add_renderbuffer(stfb, BUFFER_ACCUM);
430		430
431	stfb->stamp = 0;	431	stfb->stamp = 0;
432	st_framebuffer_update_attachments(stfb);	432	st_framebuffer_update_attachments(stfb);
433		433
434	return stfb;	434	return stfb;
435	}	435	}
436		436
437	/**	437	/**
438	* Reference a framebuffer.	438	* Reference a framebuffer.
439	*/	439	*/
440	static void	440	static void
441	st_framebuffer_reference(struct st_framebuffer **ptr,	441	st_framebuffer_reference(struct st_framebuffer **ptr,
442	struct st_framebuffer *stfb)	442	struct st_framebuffer *stfb)
443	{	443	{
444	struct gl_framebuffer *fb = &stfb->Base;	444	struct gl_framebuffer *fb = &stfb->Base;
445	_mesa_reference_framebuffer((struct gl_framebuffer **) ptr, fb);	445	_mesa_reference_framebuffer((struct gl_framebuffer **) ptr, fb);
446	}	446	}
447		447
448	static void	448	static void
449	st_context_flush(struct st_context_iface *stctxi, unsigned flags,	449	st_context_flush(struct st_context_iface *stctxi, unsigned flags,
450	struct pipe_fence_handle **fence)	450	struct pipe_fence_handle **fence)
451	{	451	{
452	struct st_context st = (struct st_context ) stctxi;	452	struct st_context st = (struct st_context ) stctxi;
453	unsigned pipe_flags = 0;	453	unsigned pipe_flags = 0;
454		454
455	if (flags & ST_FLUSH_END_OF_FRAME) {	455	if (flags & ST_FLUSH_END_OF_FRAME) {
456	pipe_flags \|= PIPE_FLUSH_END_OF_FRAME;	456	pipe_flags \|= PIPE_FLUSH_END_OF_FRAME;
457	}	457	}
458		458
459	st_flush(st, fence, pipe_flags);	459	st_flush(st, fence, pipe_flags);
460	if (flags & ST_FLUSH_FRONT)	460	if (flags & ST_FLUSH_FRONT)
461	st_manager_flush_frontbuffer(st);	461	st_manager_flush_frontbuffer(st);
462	}	462	}
463		463
464	static boolean	464	static boolean
465	st_context_teximage(struct st_context_iface *stctxi,	465	st_context_teximage(struct st_context_iface *stctxi,
466	enum st_texture_type tex_type,	466	enum st_texture_type tex_type,
467	int level, enum pipe_format pipe_format,	467	int level, enum pipe_format pipe_format,
468	struct pipe_resource *tex, boolean mipmap)	468	struct pipe_resource *tex, boolean mipmap)
469	{	469	{
470	struct st_context st = (struct st_context ) stctxi;	470	struct st_context st = (struct st_context ) stctxi;
471	struct gl_context *ctx = st->ctx;	471	struct gl_context *ctx = st->ctx;
472	struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);	472	struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
473	struct gl_texture_object *texObj;	473	struct gl_texture_object *texObj;
474	struct gl_texture_image *texImage;	474	struct gl_texture_image *texImage;
475	struct st_texture_object *stObj;	475	struct st_texture_object *stObj;
476	struct st_texture_image *stImage;	476	struct st_texture_image *stImage;
477	GLenum internalFormat;	477	GLenum internalFormat;
478	GLuint width, height, depth;	478	GLuint width, height, depth;
479	GLenum target;	479	GLenum target;
480		480
481	switch (tex_type) {	481	switch (tex_type) {
482	case ST_TEXTURE_1D:	482	case ST_TEXTURE_1D:
483	target = GL_TEXTURE_1D;	483	target = GL_TEXTURE_1D;
484	break;	484	break;
485	case ST_TEXTURE_2D:	485	case ST_TEXTURE_2D:
486	target = GL_TEXTURE_2D;	486	target = GL_TEXTURE_2D;
487	break;	487	break;
488	case ST_TEXTURE_3D:	488	case ST_TEXTURE_3D:
489	target = GL_TEXTURE_3D;	489	target = GL_TEXTURE_3D;
490	break;	490	break;
491	case ST_TEXTURE_RECT:	491	case ST_TEXTURE_RECT:
492	target = GL_TEXTURE_RECTANGLE_ARB;	492	target = GL_TEXTURE_RECTANGLE_ARB;
493	break;	493	break;
494	default:	494	default:
495	return FALSE;	495	return FALSE;
496	}	496	}
497		497
498	texObj = _mesa_select_tex_object(ctx, texUnit, target);	498	texObj = _mesa_select_tex_object(ctx, texUnit, target);
499	_mesa_lock_texture(ctx, texObj);	499	_mesa_lock_texture(ctx, texObj);
500		500

Subversion Repositories Kolibri OS

(root)/contrib/sdk/sources/Mesa/src/mesa/state_tracker/st_manager.c – Rev 4358 → 5063