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wgl: WGL_COLOR_BITS_ARB does include alpha.

This commit is contained in:
Chris Robinson 2007-08-02 19:03:12 -07:00 committed by Alexandre Julliard
parent 38c7e9356e
commit 3fc8ac5546
2 changed files with 43 additions and 46 deletions
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38
dlls/opengl32/tests/opengl.c
View File

@ -30,7 +30,13 @@ static const char* (WINAPI *pwglGetExtensionsStringARB)(HDC);
static int (WINAPI *pwglReleasePbufferDCARB)(HPBUFFERARB, HDC);
/* WGL_ARB_pixel_format */
#define WGL_COLOR_BITS_ARB 0x2014
#define WGL_RED_BITS_ARB 0x2015
#define WGL_GREEN_BITS_ARB 0x2017
#define WGL_BLUE_BITS_ARB 0x2019
#define WGL_ALPHA_BITS_ARB 0x201B
static BOOL (WINAPI *pwglChoosePixelFormatARB)(HDC, const int *, const FLOAT *, UINT, int *, UINT *);
static BOOL (WINAPI *pwglGetPixelFormatAttribivARB)(HDC, int, int, UINT, const int *, int *);
/* WGL_ARB_pbuffer */
#define WGL_DRAW_TO_PBUFFER_ARB 0x202D
@ -46,6 +52,7 @@ static void init_functions(void)
/* WGL_ARB_pixel_format */
pwglChoosePixelFormatARB = (void*)wglGetProcAddress("wglChoosePixelFormatARB");
pwglGetPixelFormatAttribivARB = (void*)wglGetProcAddress("wglGetPixelFormatAttribivARB");
/* WGL_ARB_pbuffer */
pwglCreatePbufferARB = (void*)wglGetProcAddress("wglCreatePbufferARB");
@ -188,6 +195,36 @@ static void test_setpixelformat(void)
ok(res == 0, "SetPixelFormat on main device context should fail\n");
}
static void test_colorbits(HDC hdc)
{
const int iAttribList[] = { WGL_COLOR_BITS_ARB, WGL_RED_BITS_ARB, WGL_GREEN_BITS_ARB,
WGL_BLUE_BITS_ARB, WGL_ALPHA_BITS_ARB };
int iAttribRet[sizeof(iAttribList)/sizeof(iAttribList[0])];
const int iAttribs[] = { WGL_ALPHA_BITS_ARB, 1, 0 };
unsigned int nFormats;
int res;
int iPixelFormat = 0;
/* We need a pixel format with at least one bit of alpha */
res = pwglChoosePixelFormatARB(hdc, iAttribs, NULL, 1, &iPixelFormat, &nFormats);
if(res == FALSE || nFormats == 0)
{
skip("No suitable pixel formats found\n");
return;
}
res = pwglGetPixelFormatAttribivARB(hdc, iPixelFormat, 0,
sizeof(iAttribList)/sizeof(iAttribList[0]), iAttribList, iAttribRet);
if(res == FALSE)
{
skip("wglGetPixelFormatAttribivARB failed\n");
return;
}
iAttribRet[1] += iAttribRet[2]+iAttribRet[3]+iAttribRet[4];
ok(iAttribRet[0] == iAttribRet[1], "WGL_COLOR_BITS_ARB (%d) does not equal R+G+B+A (%d)!\n",
iAttribRet[0], iAttribRet[1]);
}
START_TEST(opengl)
{
HWND hwnd;
@ -236,6 +273,7 @@ START_TEST(opengl)
init_functions();
test_setpixelformat();
test_colorbits(hdc);
wgl_extensions = pwglGetExtensionsStringARB(hdc);
if(wgl_extensions == NULL) skip("Skipping opengl32 tests because this OpenGL implementation doesn't support WGL extensions!\n");

51
dlls/winex11.drv/opengl.c
View File

@ -619,9 +619,6 @@ static int ConvertAttribWGLtoGLX(const int* iWGLAttr, int* oGLXAttr, Wine_GLPBuf
int drawattrib = 0;
int nvfloatattrib = GLX_DONT_CARE;
int pixelattrib = 0;
int isColor = 0;
int wantColorBits = 0;
int sz_alpha = 0;
/* The list of WGL attributes is allowed to be NULL. We don't return here for NULL
* because we need to do fixups for GLX_DRAWABLE_TYPE/GLX_RENDER_TYPE/GLX_FLOAT_COMPONENTS_NV. */
@ -631,7 +628,8 @@ static int ConvertAttribWGLtoGLX(const int* iWGLAttr, int* oGLXAttr, Wine_GLPBuf
switch (iWGLAttr[cur]) {
case WGL_COLOR_BITS_ARB:
pop = iWGLAttr[++cur];
wantColorBits = pop; /** see end */
PUSH2(oGLXAttr, GLX_BUFFER_SIZE, pop);
TRACE("pAttr[%d] = GLX_BUFFER_SIZE: %d\n", cur, pop);
break;
case WGL_BLUE_BITS_ARB:
pop = iWGLAttr[++cur];
@ -650,7 +648,6 @@ static int ConvertAttribWGLtoGLX(const int* iWGLAttr, int* oGLXAttr, Wine_GLPBuf
break;
case WGL_ALPHA_BITS_ARB:
pop = iWGLAttr[++cur];
sz_alpha = pop;
PUSH2(oGLXAttr, GLX_ALPHA_SIZE, pop);
TRACE("pAttr[%d] = GLX_ALPHA_SIZE: %d\n", cur, pop);
break;
@ -674,7 +671,7 @@ static int ConvertAttribWGLtoGLX(const int* iWGLAttr, int* oGLXAttr, Wine_GLPBuf
pop = iWGLAttr[++cur];
TRACE("pAttr[%d] = WGL_PIXEL_TYPE_ARB: %d\n", cur, pop);
switch (pop) {
case WGL_TYPE_COLORINDEX_ARB: pixelattrib = GLX_COLOR_INDEX_BIT; isColor = 1; break ;
case WGL_TYPE_COLORINDEX_ARB: pixelattrib = GLX_COLOR_INDEX_BIT; break ;
case WGL_TYPE_RGBA_ARB: pixelattrib = GLX_RGBA_BIT; break ;
/* This is the same as WGL_TYPE_RGBA_FLOAT_ATI but the GLX constants differ, only the ARB GLX one is widely supported so use that */
case WGL_TYPE_RGBA_FLOAT_ATI: pixelattrib = GLX_RGBA_FLOAT_BIT; break ;
@ -787,36 +784,6 @@ static int ConvertAttribWGLtoGLX(const int* iWGLAttr, int* oGLXAttr, Wine_GLPBuf
++cur;
}
/**
* Trick as WGL_COLOR_BITS_ARB != GLX_BUFFER_SIZE
* WGL_COLOR_BITS_ARB + WGL_ALPHA_BITS_ARB == GLX_BUFFER_SIZE
*
* WGL_COLOR_BITS_ARB
* The number of color bitplanes in each color buffer. For RGBA
* pixel types, it is the size of the color buffer, excluding the
* alpha bitplanes. For color-index pixels, it is the size of the
* color index buffer.
*
* GLX_BUFFER_SIZE
* This attribute defines the number of bits per color buffer.
* For GLX FBConfigs that correspond to a PseudoColor or StaticColor visual,
* this is equal to the depth value reported in the X11 visual.
* For GLX FBConfigs that correspond to TrueColor or DirectColor visual,
* this is the sum of GLX_RED_SIZE, GLX_GREEN_SIZE, GLX_BLUE_SIZE, and GLX_ALPHA_SIZE.
*
*/
if (0 < wantColorBits) {
if (!isColor) {
wantColorBits += sz_alpha;
}
if (32 < wantColorBits) {
ERR("buggy %d GLX_BUFFER_SIZE default to 32\n", wantColorBits);
wantColorBits = 32;
}
PUSH2(oGLXAttr, GLX_BUFFER_SIZE, wantColorBits);
TRACE("pAttr[%d] = WGL_COLOR_BITS_ARB: %d\n", cur, wantColorBits);
}
/* Apply the OR'd drawable type bitmask now EVEN when WGL_DRAW_TO* is unset.
* It is needed in all cases because GLX_DRAWABLE_TYPE default to GLX_WINDOW_BIT. */
PUSH2(oGLXAttr, GLX_DRAWABLE_TYPE, drawattrib);
@ -2595,16 +2562,8 @@ static GLboolean WINAPI X11DRV_wglGetPixelFormatAttribivARB(HDC hdc, int iPixelF
continue;
case WGL_COLOR_BITS_ARB:
/** see ConvertAttribWGLtoGLX for explain */
if (!fmt) goto pix_error;
hTest = pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_BUFFER_SIZE, piValues + i);
if (hTest) goto get_error;
TRACE("WGL_COLOR_BITS_ARB: GLX_BUFFER_SIZE = %d\n", piValues[i]);
hTest = pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_ALPHA_SIZE, &tmp);
if (hTest) goto get_error;
TRACE("WGL_COLOR_BITS_ARB: GLX_ALPHA_SIZE = %d\n", tmp);
piValues[i] = piValues[i] - tmp;
continue;
curGLXAttr = GLX_BUFFER_SIZE;
break;
case WGL_BIND_TO_TEXTURE_RGB_ARB:
if (use_render_texture_ati) {