diff src/video/photon/SDL_ph_gl.c @ 1662:782fd950bd46 SDL-1.3

Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. WARNING: None of the video drivers have been updated for the new API yet! The API is still under design and very fluid. The code is now run through a consistent indent format: indent -i4 -nut -nsc -br -ce The headers are being converted to automatically generate doxygen documentation.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 28 May 2006 13:04:16 +0000
parents d910939febfa
children 4da1ee79c9af
line wrap: on
line diff
--- a/src/video/photon/SDL_ph_gl.c	Sun May 21 17:27:13 2006 +0000
+++ b/src/video/photon/SDL_ph_gl.c	Sun May 28 13:04:16 2006 +0000
@@ -29,73 +29,76 @@
 
 #if (_NTO_VERSION >= 630)
     /* PhotonGL functions */
-    GLPH_DECLARE_FUNCS;
+GLPH_DECLARE_FUNCS;
 #endif /* 6.3.0 */
 
 #if (_NTO_VERSION < 630)
-void ph_GL_SwapBuffers(_THIS)
+void
+ph_GL_SwapBuffers (_THIS)
 {
-    PgSetRegion(PtWidgetRid(window));
-    PdOpenGLContextSwapBuffers(oglctx);
+    PgSetRegion (PtWidgetRid (window));
+    PdOpenGLContextSwapBuffers (oglctx);
 }
 #else
-void ph_GL_SwapBuffers(_THIS)
+void
+ph_GL_SwapBuffers (_THIS)
 {
-    qnxgl_swap_buffers(oglbuffers);
+    qnxgl_swap_buffers (oglbuffers);
 }
 #endif /* 6.3.0 */
 
-int ph_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value)
+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;
+    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;
+    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);
+    default:
+        *value = 0;
+        return (-1);
     }
     return 0;
 }
 
 #if (_NTO_VERSION < 630)
-int ph_GL_LoadLibrary(_THIS, const char* path)
+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;
@@ -103,56 +106,55 @@
     return 0;
 }
 #else
-int ph_GL_LoadLibrary(_THIS, const char* path)
+int
+ph_GL_LoadLibrary (_THIS, const char *path)
 {
-    void* handle;
-    int dlopen_flags=RTLD_WORLD | RTLD_GROUP;
+    void *handle;
+    int dlopen_flags = RTLD_WORLD | RTLD_GROUP;
 
-    if (this->gl_config.dll_handle!=NULL)
-    {
+    if (this->gl_config.dll_handle != NULL) {
         return 0;
     }
 
-    handle = dlopen(path, dlopen_flags);
+    handle = dlopen (path, dlopen_flags);
 
-    if (handle==NULL)
-    {
-        SDL_SetError("ph_GL_LoadLibrary(): Could not load OpenGL library");
+    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));
+    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)
+void *
+ph_GL_GetProcAddress (_THIS, const char *proc)
 {
     return NULL;
 }
 #else
-void* ph_GL_GetProcAddress(_THIS, const char* proc)
+void *
+ph_GL_GetProcAddress (_THIS, const char *proc)
 {
-    void* function;
+    void *function;
 
-    if (this->gl_config.dll_handle==NULL)
-    {
-        ph_GL_LoadLibrary(this, DEFAULT_OPENGL);
-        if (this->gl_config.dll_handle==NULL)
-        {
+    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);
+
+    function = qnxgl_get_func (proc, oglctx, 0);
+    if (function == NULL) {
+        function = dlsym (this->gl_config.dll_handle, proc);
     }
 
     return function;
@@ -160,27 +162,26 @@
 #endif /* 6.3.0 */
 
 #if (_NTO_VERSION < 630)
-int ph_GL_MakeCurrent(_THIS)
+int
+ph_GL_MakeCurrent (_THIS)
 {
-    PgSetRegion(PtWidgetRid(window));
+    PgSetRegion (PtWidgetRid (window));
 
-    if (oglctx!=NULL)
-    {
-        PhDCSetCurrent(oglctx);
+    if (oglctx != NULL) {
+        PhDCSetCurrent (oglctx);
     }
 
     return 0;
 }
 #else
-int ph_GL_MakeCurrent(_THIS)
+int
+ph_GL_MakeCurrent (_THIS)
 {
-    PgSetRegion(PtWidgetRid(window));
+    PgSetRegion (PtWidgetRid (window));
 
-    if (oglctx!=NULL)
-    {
-        if (qnxgl_set_current(oglctx) == -1)
-        {
-           return -1;
+    if (oglctx != NULL) {
+        if (qnxgl_set_current (oglctx) == -1) {
+            return -1;
         }
     }
 
@@ -192,80 +193,70 @@
 
 /* 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)
+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 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;
-       }
+    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;
+    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;
+    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_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;
+    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 (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");
+    if (oglctx == NULL) {
+        SDL_SetError
+            ("ph_SetupOpenGLContext(): cannot create OpenGL context !\n");
         return -1;
     }
 
-    PhDCSetCurrent(oglctx);
+    PhDCSetCurrent (oglctx);
 
-    PtFlush();
+    PtFlush ();
 
-    oglflags=flags;
-    oglbpp=bpp;
+    oglflags = flags;
+    oglbpp = bpp;
 
-    if (exposepost!=0)
-    {
+    if (exposepost != 0) {
         /* OpenGL context has been recreated, so report about this fact */
-        SDL_PrivateExpose();
+        SDL_PrivateExpose ();
     }
 
     return 0;
@@ -275,128 +266,137 @@
 
 /* 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)
+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;
+    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);
+    num_interfaces = qnxgl_init (NULL, NULL, 0);
 
-    if (num_interfaces < 0)
-    {
-        SDL_SetError("ph_SetupOpenGLContext(): cannot initialize OpenGL subsystem !\n");
+    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");
+    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;
+    this->gl_config.driver_loaded = 1;
 
     /* Initialize the OpenGL context attributes */
-    qnxgl_attribs_slide=qnxgl_attribs;
+    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);
+    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);
+    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);
+    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);
+    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);
+    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;
+    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);
+    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));
+    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);
-    
+    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,
+    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);
+                                       num_buffers, width, height,
+                                       qnxgl_attribs, -1);
 
 
-    if (oglbuffers == NULL)
-    {
-        SDL_SetError("ph_SetupOpenGLContext(): failed to create OpenGL buffers !\n");
-        qnxgl_finish();
+    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);
+    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();
+    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();
+    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();
+    PtFlush ();
 
-    oglflags=flags;
-    oglbpp=bpp;
+    oglflags = flags;
+    oglbpp = bpp;
 
     return 0;
 }
@@ -404,3 +404,4 @@
 #endif /* _NTO_VERSION */
 
 #endif /* SDL_VIDEO_OPENGL */
+/* vi: set ts=4 sw=4 expandtab: */