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opengl: WGL_ARB_render_texture support.

This commit is contained in:
Roderick Colenbrander 2007-07-25 22:32:07 +02:00 committed by Alexandre Julliard
parent 802c87d066
commit 8a02dbb43c
1 changed files with 40 additions and 50 deletions
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90
dlls/winex11.drv/opengl.c
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@ -135,7 +135,7 @@ typedef struct wine_glpixelformat {
static Wine_GLContext *context_list;
static struct WineGLInfo WineGLInfo = { 0 };
static int use_render_texture_emulation = 0;
static int use_render_texture_emulation = 1;
static int use_render_texture_ati = 0;
static int swap_interval = 1;
@ -207,6 +207,7 @@ MAKE_FUNCPTR(glXChooseVisual)
MAKE_FUNCPTR(glXCreateContext)
MAKE_FUNCPTR(glXCreateGLXPixmap)
MAKE_FUNCPTR(glXGetCurrentContext)
MAKE_FUNCPTR(glXGetCurrentDrawable)
MAKE_FUNCPTR(glXDestroyContext)
MAKE_FUNCPTR(glXDestroyGLXPixmap)
MAKE_FUNCPTR(glXGetConfig)
@ -259,7 +260,9 @@ MAKE_FUNCPTR(glGetString)
MAKE_FUNCPTR(glIsEnabled)
MAKE_FUNCPTR(glNewList)
MAKE_FUNCPTR(glPixelStorei)
MAKE_FUNCPTR(glReadPixels)
MAKE_FUNCPTR(glScissor)
MAKE_FUNCPTR(glTexImage2D)
MAKE_FUNCPTR(glViewport)
#undef MAKE_FUNCPTR
@ -364,6 +367,7 @@ LOAD_FUNCPTR(glXChooseVisual)
LOAD_FUNCPTR(glXCreateContext)
LOAD_FUNCPTR(glXCreateGLXPixmap)
LOAD_FUNCPTR(glXGetCurrentContext)
LOAD_FUNCPTR(glXGetCurrentDrawable)
LOAD_FUNCPTR(glXDestroyContext)
LOAD_FUNCPTR(glXDestroyGLXPixmap)
LOAD_FUNCPTR(glXGetConfig)
@ -401,7 +405,9 @@ LOAD_FUNCPTR(glGetString)
LOAD_FUNCPTR(glIsEnabled)
LOAD_FUNCPTR(glNewList)
LOAD_FUNCPTR(glPixelStorei)
LOAD_FUNCPTR(glReadPixels)
LOAD_FUNCPTR(glScissor)
LOAD_FUNCPTR(glTexImage2D)
LOAD_FUNCPTR(glViewport)
#undef LOAD_FUNCPTR
@ -2650,37 +2656,39 @@ static GLboolean WINAPI X11DRV_wglBindTexImageARB(HPBUFFERARB hPbuffer, int iBuf
SetLastError(ERROR_INVALID_HANDLE);
return GL_FALSE;
}
/* Disable WGL_ARB_render_texture support until it is implemented properly
* using pbuffers or FBOs */
#if 0
if (!use_render_texture_ati && 1 == use_render_texture_emulation) {
int do_init = 0;
GLint prev_binded_tex;
pglGetIntegerv(object->texture_target, &prev_binded_tex);
if (NULL == object->render_ctx) {
object->render_hdc = X11DRV_wglGetPbufferDCARB(hPbuffer);
/* FIXME: This is routed through gdi32.dll to winex11.drv, replace this with GLX calls */
object->render_ctx = wglCreateContext(object->render_hdc);
do_init = 1;
}
object->prev_hdc = wglGetCurrentDC();
object->prev_ctx = wglGetCurrentContext();
/* FIXME: This is routed through gdi32.dll to winex11.drv, replace this with GLX calls */
wglMakeCurrent(object->render_hdc, object->render_ctx);
/*
if (do_init) {
glBindTexture(object->texture_target, object->texture);
if (GL_RGBA == object->use_render_texture) {
glTexImage2D(object->texture_target, 0, GL_RGBA8, object->width, object->height, 0, GL_RGBA, GL_FLOAT, NULL);
} else {
glTexImage2D(object->texture_target, 0, GL_RGB8, object->width, object->height, 0, GL_RGB, GL_FLOAT, NULL);
}
}
void *buf;
static int init = 0;
GLXContext prev_context = pglXGetCurrentContext();
Drawable prev_drawable = pglXGetCurrentDrawable();
/* Our render_texture emulation is basic and lacks some features (1D/Cube support).
This is mostly due to lack of demos/games using them. Further the use of glReadPixels
isn't ideal performance wise but I wasn't able to get other ways working.
*/
object->texture = prev_binded_tex;
return GL_TRUE;
if(!init) {
init = 1; /* Only show the FIXME once for performance reasons */
FIXME("partial stub!\n");
}
buf = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, 4*object->width*object->height);
if(!buf) {
ERR("Unable to allocate a buffer for render_texture emulation\n");
return GL_FALSE;
}
/* Switch to our pbuffer and readback its contents */
pglXMakeCurrent(gdi_display, object->drawable, prev_context);
pglReadPixels(0, 0, object->width, object->height, GL_RGBA, GL_UNSIGNED_BYTE, buf);
/* Switch back to the original drawable and upload the pbuffer-texture */
pglXMakeCurrent(object->display, prev_drawable, prev_context);
pglTexImage2D(object->texture_target, 0, GL_RGBA8, object->width, object->height, 0, GL_RGBA, GL_UNSIGNED_BYTE, buf);
HeapFree(GetProcessHeap(), 0, buf);
}
#endif
if (NULL != pglXBindTexImageARB) {
return pglXBindTexImageARB(object->display, object->drawable, iBuffer);
}
@ -2705,26 +2713,6 @@ static GLboolean WINAPI X11DRV_wglReleaseTexImageARB(HPBUFFERARB hPbuffer, int i
return GL_FALSE;
}
if (!use_render_texture_ati && 1 == use_render_texture_emulation) {
/*
GLint prev_binded_tex;
glGetIntegerv(object->texture_target, &prev_binded_tex);
if (GL_TEXTURE_1D == object->texture_target) {
glCopyTexSubImage1D(object->texture_target, object->texture_level, 0, 0, 0, object->width);
} else {
glCopyTexSubImage2D(object->texture_target, object->texture_level, 0, 0, 0, 0, object->width, object->height);
}
glBindTexture(object->texture_target, prev_binded_tex);
SwapBuffers(object->render_hdc);
*/
pglBindTexture(object->texture_target, object->texture);
if (GL_TEXTURE_1D == object->texture_target) {
pglCopyTexSubImage1D(object->texture_target, object->texture_level, 0, 0, 0, object->width);
} else {
pglCopyTexSubImage2D(object->texture_target, object->texture_level, 0, 0, 0, 0, object->width, object->height);
}
/* FIXME: This is routed through gdi32.dll to winex11.drv, replace this with GLX calls */
wglMakeCurrent(object->prev_hdc, object->prev_ctx);
return GL_TRUE;
}
if (NULL != pglXReleaseTexImageARB) {
@ -2965,8 +2953,10 @@ static void X11DRV_WineGL_LoadExtensions(void)
register_extension(&WGL_ARB_pixel_format);
/* Support WGL_ARB_render_texture when there's support or pbuffer based emulation */
if (glxRequireExtension("GLX_ATI_render_texture") ||
glxRequireExtension("GLX_ARB_render_texture"))
glxRequireExtension("GLX_ARB_render_texture") ||
(glxRequireVersion(3) && glxRequireExtension("GLX_SGIX_pbuffer") && use_render_texture_emulation))
register_extension(&WGL_ARB_render_texture);
/* EXT Extensions */