--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/libsdl-trunk/src/video/photon/SDL_ph_gl.c Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,406 @@
+/*
+ SDL - Simple DirectMedia Layer
+ Copyright (C) 1997-2006 Sam Lantinga
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+ Sam Lantinga
+ slouken@libsdl.org
+*/
+#include "SDL_config.h"
+
+#include <dlfcn.h>
+#include "SDL.h"
+#include "SDL_ph_gl.h"
+
+#if SDL_VIDEO_OPENGL
+
+#if (_NTO_VERSION >= 630)
+ /* PhotonGL functions */
+ GLPH_DECLARE_FUNCS;
+#endif /* 6.3.0 */
+
+#if (_NTO_VERSION < 630)
+void ph_GL_SwapBuffers(_THIS)
+{
+ PgSetRegion(PtWidgetRid(window));
+ PdOpenGLContextSwapBuffers(oglctx);
+}
+#else
+void ph_GL_SwapBuffers(_THIS)
+{
+ qnxgl_swap_buffers(oglbuffers);
+}
+#endif /* 6.3.0 */
+
+int ph_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value)
+{
+ switch (attrib)
+ {
+ case SDL_GL_DOUBLEBUFFER:
+ *value=this->gl_config.double_buffer;
+ break;
+ case SDL_GL_STENCIL_SIZE:
+ *value=this->gl_config.stencil_size;
+ break;
+ case SDL_GL_DEPTH_SIZE:
+ *value=this->gl_config.depth_size;
+ break;
+#if (_NTO_VERSION >= 630)
+ case SDL_GL_RED_SIZE:
+ *value=this->gl_config.red_size;
+ break;
+ case SDL_GL_GREEN_SIZE:
+ *value=this->gl_config.green_size;
+ break;
+ case SDL_GL_BLUE_SIZE:
+ *value=this->gl_config.blue_size;
+ break;
+ case SDL_GL_ALPHA_SIZE:
+ *value=this->gl_config.alpha_size;
+ break;
+ case SDL_GL_ACCUM_RED_SIZE:
+ *value=this->gl_config.accum_red_size;
+ break;
+ case SDL_GL_ACCUM_GREEN_SIZE:
+ *value=this->gl_config.accum_green_size;
+ break;
+ case SDL_GL_ACCUM_BLUE_SIZE:
+ *value=this->gl_config.accum_blue_size;
+ break;
+ case SDL_GL_ACCUM_ALPHA_SIZE:
+ *value=this->gl_config.accum_alpha_size;
+ break;
+ case SDL_GL_STEREO:
+ *value=this->gl_config.stereo;
+ break;
+#endif /* 6.3.0 */
+ default:
+ *value=0;
+ return(-1);
+ }
+ return 0;
+}
+
+#if (_NTO_VERSION < 630)
+int ph_GL_LoadLibrary(_THIS, const char* path)
+{
+ /* if code compiled with SDL_VIDEO_OPENGL, that mean that library already linked */
+ this->gl_config.driver_loaded = 1;
+
+ return 0;
+}
+#else
+int ph_GL_LoadLibrary(_THIS, const char* path)
+{
+ void* handle;
+ int dlopen_flags=RTLD_WORLD | RTLD_GROUP;
+
+ if (this->gl_config.dll_handle!=NULL)
+ {
+ return 0;
+ }
+
+ handle = dlopen(path, dlopen_flags);
+
+ if (handle==NULL)
+ {
+ SDL_SetError("ph_GL_LoadLibrary(): Could not load OpenGL library");
+ return -1;
+ }
+
+ this->gl_config.dll_handle = handle;
+ this->gl_config.driver_loaded = 1;
+
+ SDL_strlcpy(this->gl_config.driver_path, path, SDL_arraysize(this->gl_config.driver_path));
+
+ return 0;
+}
+#endif /* 6.3.0 */
+
+#if (_NTO_VERSION < 630)
+void* ph_GL_GetProcAddress(_THIS, const char* proc)
+{
+ return NULL;
+}
+#else
+void* ph_GL_GetProcAddress(_THIS, const char* proc)
+{
+ void* function;
+
+ if (this->gl_config.dll_handle==NULL)
+ {
+ ph_GL_LoadLibrary(this, DEFAULT_OPENGL);
+ if (this->gl_config.dll_handle==NULL)
+ {
+ return NULL;
+ }
+ }
+
+ function=qnxgl_get_func(proc, oglctx, 0);
+ if (function==NULL)
+ {
+ function=dlsym(this->gl_config.dll_handle, proc);
+ }
+
+ return function;
+}
+#endif /* 6.3.0 */
+
+#if (_NTO_VERSION < 630)
+int ph_GL_MakeCurrent(_THIS)
+{
+ PgSetRegion(PtWidgetRid(window));
+
+ if (oglctx!=NULL)
+ {
+ PhDCSetCurrent(oglctx);
+ }
+
+ return 0;
+}
+#else
+int ph_GL_MakeCurrent(_THIS)
+{
+ PgSetRegion(PtWidgetRid(window));
+
+ if (oglctx!=NULL)
+ {
+ if (qnxgl_set_current(oglctx) == -1)
+ {
+ return -1;
+ }
+ }
+
+ return 0;
+}
+#endif /* 6.3.0 */
+
+#if (_NTO_VERSION < 630)
+
+/* This code is actual for the Photon3D Runtime which was available prior to 6.3 only */
+
+int ph_SetupOpenGLContext(_THIS, int width, int height, int bpp, Uint32 flags)
+{
+ PhDim_t dim;
+ uint64_t OGLAttrib[PH_OGL_MAX_ATTRIBS];
+ int exposepost=0;
+ int OGLargc;
+
+ dim.w=width;
+ dim.h=height;
+
+ if ((oglctx!=NULL) && (oglflags==flags) && (oglbpp==bpp))
+ {
+ PdOpenGLContextResize(oglctx, &dim);
+ PhDCSetCurrent(oglctx);
+ return 0;
+ }
+ else
+ {
+ if (oglctx!=NULL)
+ {
+ PhDCSetCurrent(NULL);
+ PhDCRelease(oglctx);
+ oglctx=NULL;
+ exposepost=1;
+ }
+ }
+
+ OGLargc=0;
+ if (this->gl_config.depth_size)
+ {
+ OGLAttrib[OGLargc++]=PHOGL_ATTRIB_DEPTH_BITS;
+ OGLAttrib[OGLargc++]=this->gl_config.depth_size;
+ }
+ if (this->gl_config.stencil_size)
+ {
+ OGLAttrib[OGLargc++]=PHOGL_ATTRIB_STENCIL_BITS;
+ OGLAttrib[OGLargc++]=this->gl_config.stencil_size;
+ }
+ OGLAttrib[OGLargc++]=PHOGL_ATTRIB_FORCE_SW;
+ if (flags & SDL_FULLSCREEN)
+ {
+ OGLAttrib[OGLargc++]=PHOGL_ATTRIB_FULLSCREEN;
+ OGLAttrib[OGLargc++]=PHOGL_ATTRIB_DIRECT;
+ OGLAttrib[OGLargc++]=PHOGL_ATTRIB_FULLSCREEN_BEST;
+ OGLAttrib[OGLargc++]=PHOGL_ATTRIB_FULLSCREEN_CENTER;
+ }
+ OGLAttrib[OGLargc++]=PHOGL_ATTRIB_NONE;
+
+ if (this->gl_config.double_buffer)
+ {
+ oglctx=PdCreateOpenGLContext(2, &dim, 0, OGLAttrib);
+ }
+ else
+ {
+ oglctx=PdCreateOpenGLContext(1, &dim, 0, OGLAttrib);
+ }
+
+ if (oglctx==NULL)
+ {
+ SDL_SetError("ph_SetupOpenGLContext(): cannot create OpenGL context !\n");
+ return -1;
+ }
+
+ PhDCSetCurrent(oglctx);
+
+ PtFlush();
+
+ oglflags=flags;
+ oglbpp=bpp;
+
+ if (exposepost!=0)
+ {
+ /* OpenGL context has been recreated, so report about this fact */
+ SDL_PrivateExpose();
+ }
+
+ return 0;
+}
+
+#else /* _NTO_VERSION */
+
+/* This code is actual for the built-in PhGL support, which became available since 6.3 */
+
+int ph_SetupOpenGLContext(_THIS, int width, int height, int bpp, Uint32 flags)
+{
+ qnxgl_buf_attrib_t qnxgl_attribs[PH_OGL_MAX_ATTRIBS];
+ qnxgl_buf_attrib_t* qnxgl_attribs_slide;
+ int num_interfaces = 0;
+ int num_buffers = 0;
+
+ /* Initialize the OpenGL subsystem */
+
+ num_interfaces = qnxgl_init(NULL, NULL, 0);
+
+ if (num_interfaces < 0)
+ {
+ SDL_SetError("ph_SetupOpenGLContext(): cannot initialize OpenGL subsystem !\n");
+ return -1;
+ }
+ if (num_interfaces == 0)
+ {
+ SDL_SetError("ph_SetupOpenGLContext(): there are no available OpenGL renderers was found !\n");
+ return -1;
+ }
+
+ /* Driver is linked */
+ this->gl_config.driver_loaded=1;
+
+ /* Initialize the OpenGL context attributes */
+ qnxgl_attribs_slide=qnxgl_attribs;
+
+ /* Depth size */
+ if (this->gl_config.depth_size)
+ {
+ fprintf(stderr, "setted depth size %d\n", this->gl_config.depth_size);
+ qnxgl_attribs_slide = qnxgl_attrib_set_depth(qnxgl_attribs_slide, this->gl_config.depth_size);
+ }
+
+ /* Stencil size */
+ if (this->gl_config.stencil_size)
+ {
+ qnxgl_attribs_slide = qnxgl_attrib_set_stencil(qnxgl_attribs_slide, this->gl_config.stencil_size);
+ }
+
+ /* The sum of the accum bits of each channel */
+ if ((this->gl_config.accum_red_size != 0) && (this->gl_config.accum_blue_size != 0) &&
+ (this->gl_config.accum_green_size != 0))
+ {
+ qnxgl_attribs_slide = qnxgl_attrib_set_accum(qnxgl_attribs_slide,
+ this->gl_config.accum_red_size + this->gl_config.accum_blue_size +
+ this->gl_config.accum_green_size + this->gl_config.accum_alpha_size);
+ }
+
+ /* Stereo mode */
+ if (this->gl_config.stereo)
+ {
+ qnxgl_attribs_slide = qnxgl_attrib_set_stereo(qnxgl_attribs_slide);
+ }
+
+ /* Fullscreen mode */
+ if ((flags & SDL_FULLSCREEN) == SDL_FULLSCREEN)
+ {
+ qnxgl_attribs_slide = qnxgl_attrib_set_hint_fullscreen(qnxgl_attribs_slide);
+ }
+
+ /* Double buffering mode */
+ if (this->gl_config.double_buffer)
+ {
+ num_buffers=2;
+ }
+ else
+ {
+ num_buffers=1;
+ }
+
+ /* Loading the function pointers so we can use the extensions */
+ GLPH_LOAD_FUNCS_GC(oglctx);
+
+ /* Set the buffers region to be that of our window's region */
+ qnxgl_attribs_slide = glph_attrib_set_region(qnxgl_attribs_slide, PtWidgetRid(window));
+
+ /* End of the attributes array */
+ qnxgl_attribs_slide = qnxgl_attrib_set_end(qnxgl_attribs_slide);
+
+ /* Create the buffers with the specified color model */
+ fprintf(stderr, "ARGB: %d, %d, %d, %d\n", this->gl_config.alpha_size, this->gl_config.red_size, this->gl_config.green_size, this->gl_config.blue_size);
+ oglbuffers = qnxgl_buffers_create(
+ QNXGL_FORMAT_BEST_RGB,
+/* __QNXGL_BUILD_FORMAT(0, __QNXGL_COLOR_MODEL_RGB, this->gl_config.alpha_size,
+ this->gl_config.red_size, this->gl_config.green_size, this->gl_config.blue_size), */
+ num_buffers, width, height, qnxgl_attribs, -1);
+
+
+ if (oglbuffers == NULL)
+ {
+ SDL_SetError("ph_SetupOpenGLContext(): failed to create OpenGL buffers !\n");
+ qnxgl_finish();
+ return -1;
+ }
+
+ /* Create a QNXGL context for the previously created buffer */
+ oglctx = qnxgl_context_create(oglbuffers, NULL);
+
+ if (oglctx == NULL)
+ {
+ SDL_SetError("ph_SetupOpenGLContext(): failed to create OpenGL context !\n");
+ qnxgl_buffers_destroy(oglbuffers);
+ qnxgl_finish();
+ return -1;
+ }
+
+ /* Attempt to make the context current so we can use OpenGL commands */
+ if (qnxgl_set_current(oglctx) == -1)
+ {
+ SDL_SetError("ph_SetupOpenGLContext(): failed to make the OpenGL context current !\n");
+ qnxgl_context_destroy(oglctx);
+ qnxgl_buffers_destroy(oglbuffers);
+ qnxgl_finish();
+ return -1;
+ }
+
+ PtFlush();
+
+ oglflags=flags;
+ oglbpp=bpp;
+
+ return 0;
+}
+
+#endif /* _NTO_VERSION */
+
+#endif /* SDL_VIDEO_OPENGL */