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wined3d: Create a separate function for checking a format's FBO compatibility.

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This commit is contained in:
Henri Verbeet 2009-03-27 15:15:17 +01:00 committed by Alexandre Julliard
parent 1407bd6b1a
commit 7874a6b74b
1 changed files with 31 additions and 27 deletions
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58
dlls/wined3d/utils.c
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@ -404,12 +404,36 @@ static BOOL init_format_base_info(WineD3D_GL_Info *gl_info)
return TRUE;
}
#define GLINFO_LOCATION (*gl_info)
static BOOL check_fbo_compat(const WineD3D_GL_Info *gl_info, GLint internal_format)
{
GLuint tex, fb;
GLenum status;
while(glGetError());
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D, tex);
glTexImage2D(GL_TEXTURE_2D, 0, internal_format, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
GL_EXTCALL(glGenFramebuffersEXT(1, &fb));
GL_EXTCALL(glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fb));
GL_EXTCALL(glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_2D, tex, 0));
status = GL_EXTCALL(glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT));
GL_EXTCALL(glDeleteFramebuffersEXT(1, &fb));
glDeleteTextures(1, &tex);
checkGLcall("Framebuffer format check");
return status == GL_FRAMEBUFFER_COMPLETE_EXT;
}
BOOL initPixelFormatsNoGL(WineD3D_GL_Info *gl_info)
{
return init_format_base_info(gl_info);
}
#define GLINFO_LOCATION (*gl_info)
BOOL initPixelFormats(WineD3D_GL_Info *gl_info)
{
unsigned int src;
@ -433,42 +457,22 @@ BOOL initPixelFormats(WineD3D_GL_Info *gl_info)
desc->Flags |= gl_formats_template[src].Flags;
desc->heightscale = 1.0;
if(wined3d_settings.offscreen_rendering_mode == ORM_FBO &&
gl_formats_template[src].rtInternal != 0) {
GLuint tex, fb;
GLenum status;
if (wined3d_settings.offscreen_rendering_mode == ORM_FBO && gl_formats_template[src].rtInternal)
{
/* Check if the default internal format is supported as a frame buffer target, otherwise
* fall back to the render target internal.
*
* Try to stick to the standard format if possible, this limits precision differences
*/
while(glGetError());
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D, tex);
glTexImage2D(GL_TEXTURE_2D, 0, gl_formats_template[src].glInternal, 16, 16, 0,
GL_RGBA, GL_UNSIGNED_BYTE, NULL);
GL_EXTCALL(glGenFramebuffersEXT(1, &fb));
GL_EXTCALL(glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fb));
GL_EXTCALL(glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
GL_TEXTURE_2D, tex, 0));
status = GL_EXTCALL(glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT));
GL_EXTCALL(glDeleteFramebuffersEXT(1, &fb));
glDeleteTextures(1, &tex);
checkGLcall("Framebuffer format check");
if(status != GL_FRAMEBUFFER_COMPLETE_EXT) {
TRACE("Internal format of %s not supported as frame buffer target, using render target internal instead\n",
debug_d3dformat(gl_formats_template[src].fmt));
if (!check_fbo_compat(gl_info, gl_formats_template[src].glInternal))
{
TRACE("Internal format of %s not supported as FBO target, using render target internal instead\n",
debug_d3dformat(gl_formats_template[src].fmt));
gl_info->gl_formats[dst].rtInternal = gl_formats_template[src].rtInternal;
} else {
TRACE("Format %s is supported as fbo target\n", debug_d3dformat(gl_formats_template[src].fmt));
gl_info->gl_formats[dst].rtInternal = gl_formats_template[src].glInternal;
}
} else {
gl_info->gl_formats[dst].rtInternal = gl_formats_template[src].glInternal;
}