mirror of
https://github.com/KartKrewDev/RingRacers.git
synced 2025-10-30 08:01:28 +00:00
Allocate a buffer for non-RGBA to RGBA texture conversions.
UpdateTexture will I_Error (from AllocTextureBuffer) if the allocation fails.
This commit is contained in:
Jaime Ita Passos
toaster
parent
4c9c54e44e
commit
5539341ebc
1 changed files with 82 additions and 42 deletions
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@ -131,7 +131,6 @@ static const GLfloat byte2float[256] = {
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// -----------------+
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// GL_DBG_Printf : Output debug messages to debug log if DEBUG_TO_FILE is defined,
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// : else do nothing
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// Returns :
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// -----------------+
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#ifdef DEBUG_TO_FILE
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@ -159,8 +158,6 @@ FUNCPRINTF void GL_DBG_Printf(const char *format, ...)
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// -----------------+
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// GL_MSG_Warning : Raises a warning.
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// :
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// Returns :
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// -----------------+
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static void GL_MSG_Warning(const char *format, ...)
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@ -184,8 +181,6 @@ static void GL_MSG_Warning(const char *format, ...)
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// -----------------+
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// GL_MSG_Error : Raises an error.
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// :
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// Returns :
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// -----------------+
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static void GL_MSG_Error(const char *format, ...)
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@ -207,6 +202,32 @@ static void GL_MSG_Error(const char *format, ...)
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#endif
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}
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// ----------------------+
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// GetTextureFormatName : Returns the corresponding texture format string from the texture format enumeration.
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// ----------------------+
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static const char *GetTextureFormatName(INT32 format)
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{
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static char num[12];
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switch (format)
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{
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case GL_TEXFMT_P_8: return "GL_TEXFMT_P_8";
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case GL_TEXFMT_AP_88: return "GL_TEXFMT_AP_88";
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case GL_TEXFMT_RGBA: return "GL_TEXFMT_RGBA";
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case GL_TEXFMT_ALPHA_8: return "GL_TEXFMT_ALPHA_8";
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case GL_TEXFMT_INTENSITY_8: return "GL_TEXFMT_INTENSITY_8";
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case GL_TEXFMT_ALPHA_INTENSITY_88: return "GL_TEXFMT_ALPHA_INTENSITY_88";
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default: break;
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}
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// If the texture format is not known (due to it being invalid),
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// return a string containing the format index instead.
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format = INT32_MIN;
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snprintf(num, sizeof(num), "%d", format);
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return num;
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}
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#ifdef STATIC_OPENGL
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/* 1.0 functions */
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/* Miscellaneous */
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@ -1410,7 +1431,6 @@ INT32 isExtAvailable(const char *extension, const GLubyte *start)
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// -----------------+
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// Init : Initialise the OpenGL interface API
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// Returns :
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// -----------------+
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EXPORT boolean HWRAPI(Init) (void)
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{
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@ -1770,37 +1790,59 @@ EXPORT void HWRAPI(SetBlend) (FBITFIELD PolyFlags)
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CurrentPolyFlags = PolyFlags;
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}
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// -------------------+
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// AllocTextureBuffer : Allocates memory for converting a non-RGBA texture into an RGBA texture.
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// -------------------+
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static RGBA_t *AllocTextureBuffer(GLMipmap_t *pTexInfo)
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{
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size_t len = (pTexInfo->width * pTexInfo->height);
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RGBA_t *tex = calloc(len, sizeof(RGBA_t));
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if (tex == NULL)
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I_Error("AllocTextureBuffer: out of memory allocating %s bytes for texture %d, format %s",
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sizeu1(len * sizeof(RGBA_t)), pTexInfo->downloaded, GetTextureFormatName(pTexInfo->format));
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return tex;
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}
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// ------------------+
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// FreeTextureBuffer : Frees memory allocated by AllocTextureBuffer.
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// ------------------+
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static void FreeTextureBuffer(RGBA_t *tex)
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{
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if (tex)
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free(tex);
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}
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// -----------------+
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// UpdateTexture : Updates the texture data.
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// UpdateTexture : Updates texture data.
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// -----------------+
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EXPORT void HWRAPI(UpdateTexture) (GLMipmap_t *pTexInfo)
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{
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// Download a mipmap
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boolean updatemipmap = true;
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static RGBA_t tex[2048*2048];
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const GLvoid *ptex = tex;
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INT32 w, h;
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GLuint texnum = 0;
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// Upload a texture
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GLuint num = pTexInfo->downloaded;
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boolean update = true;
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if (!pTexInfo->downloaded)
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INT32 w = pTexInfo->width, h = pTexInfo->height;
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INT32 i, j;
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const GLubyte *pImgData = (const GLubyte *)pTexInfo->data;
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const GLvoid *ptex = NULL;
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RGBA_t *tex = NULL;
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// Generate a new texture name.
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if (!num)
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{
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pglGenTextures(1, &texnum);
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pTexInfo->downloaded = texnum;
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updatemipmap = false;
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pglGenTextures(1, &num);
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pTexInfo->downloaded = num;
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update = false;
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}
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else
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texnum = pTexInfo->downloaded;
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//GL_DBG_Printf ("DownloadMipmap %d %x\n",(INT32)texnum,pTexInfo->data);
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//GL_DBG_Printf("UpdateTexture %d %x\n", (INT32)num, pImgData);
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w = pTexInfo->width;
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h = pTexInfo->height;
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if ((pTexInfo->format == GL_TEXFMT_P_8) ||
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(pTexInfo->format == GL_TEXFMT_AP_88))
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if ((pTexInfo->format == GL_TEXFMT_P_8) || (pTexInfo->format == GL_TEXFMT_AP_88))
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{
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const GLubyte *pImgData = (const GLubyte *)pTexInfo->data;
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INT32 i, j;
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ptex = tex = AllocTextureBuffer(pTexInfo);
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for (j = 0; j < h; j++)
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{
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@ -1831,20 +1873,17 @@ EXPORT void HWRAPI(UpdateTexture) (GLMipmap_t *pTexInfo)
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tex[w*j+i].s.alpha = *pImgData;
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pImgData++;
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}
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}
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}
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}
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else if (pTexInfo->format == GL_TEXFMT_RGBA)
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{
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// corona test : passed as ARGB 8888, which is not in glide formats
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// Hurdler: not used for coronas anymore, just for dynamic lighting
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ptex = pTexInfo->data;
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// Directly upload the texture data without any kind of conversion.
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ptex = pImgData;
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}
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else if (pTexInfo->format == GL_TEXFMT_ALPHA_INTENSITY_88)
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{
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const GLubyte *pImgData = (const GLubyte *)pTexInfo->data;
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INT32 i, j;
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ptex = tex = AllocTextureBuffer(pTexInfo);
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for (j = 0; j < h; j++)
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{
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@ -1861,8 +1900,7 @@ EXPORT void HWRAPI(UpdateTexture) (GLMipmap_t *pTexInfo)
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}
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else if (pTexInfo->format == GL_TEXFMT_ALPHA_8) // Used for fade masks
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{
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const GLubyte *pImgData = (const GLubyte *)pTexInfo->data;
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INT32 i, j;
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ptex = tex = AllocTextureBuffer(pTexInfo);
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for (j = 0; j < h; j++)
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{
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@ -1877,11 +1915,10 @@ EXPORT void HWRAPI(UpdateTexture) (GLMipmap_t *pTexInfo)
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}
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}
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else
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GL_MSG_Warning ("SetTexture(bad format) %ld\n", pTexInfo->format);
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GL_MSG_Warning("UpdateTexture: bad format %d\n", pTexInfo->format);
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// the texture number was already generated by pglGenTextures
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pglBindTexture(GL_TEXTURE_2D, texnum);
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tex_downloaded = texnum;
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pglBindTexture(GL_TEXTURE_2D, num);
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tex_downloaded = num;
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// disable texture filtering on any texture that has holes so there's no dumb borders or blending issues
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if (pTexInfo->flags & TF_TRANSPARENT)
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@ -1910,7 +1947,7 @@ EXPORT void HWRAPI(UpdateTexture) (GLMipmap_t *pTexInfo)
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}
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else
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{
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if (updatemipmap)
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if (update)
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pglTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, ptex);
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else
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pglTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE_ALPHA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, ptex);
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@ -1931,7 +1968,7 @@ EXPORT void HWRAPI(UpdateTexture) (GLMipmap_t *pTexInfo)
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}
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else
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{
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if (updatemipmap)
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if (update)
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pglTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, ptex);
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else
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pglTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, ptex);
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@ -1951,13 +1988,16 @@ EXPORT void HWRAPI(UpdateTexture) (GLMipmap_t *pTexInfo)
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}
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else
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{
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if (updatemipmap)
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if (update)
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pglTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, ptex);
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else
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pglTexImage2D(GL_TEXTURE_2D, 0, textureformatGL, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, ptex);
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}
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}
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// Free the texture buffer
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FreeTextureBuffer(tex);
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if (pTexInfo->flags & TF_WRAPX)
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pglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
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else
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