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changeset 2844:70b63882d2ef

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The YCbCr texture extension works now that bytes_per_pixel() returns the correct value for YUV textures. Yay! I'm still cheering for Ryan's pixel shader instead, since once it works different shaders can handle all the YUV formats.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 06 Dec 2008 18:37:06 +0000
parents e919f2e3700d
children 1cc5d5b164e2
files src/video/SDL_renderer_gl.c
diffstat 1 files changed, 22 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/src/video/SDL_renderer_gl.c	Sat Dec 06 18:22:28 2008 +0000
+++ b/src/video/SDL_renderer_gl.c	Sat Dec 06 18:37:06 2008 +0000
@@ -660,6 +660,26 @@
         format = GL_BGRA;
         type = GL_UNSIGNED_INT_2_10_10_10_REV;
         break;
+#if 0 /* Ryan's pixel shader code should be better, once it works. :) */
+    case SDL_PIXELFORMAT_UYVY: 	 
+//        if (renderdata->GL_MESA_ycbcr_texture) { 	 
+//            internalFormat = 3; 	 
+//            format = GL_YCBCR_MESA; 	 
+//            type = GL_UNSIGNED_SHORT_8_8_MESA; 	 
+//        } else if (renderdata->GL_APPLE_ycbcr_422) { 	 
+            internalFormat = GL_RGB; 	 
+            format = GL_YCBCR_422_APPLE; 	 
+#if SDL_BYTEORDER == SDL_LIL_ENDIAN 	 
+            type = GL_UNSIGNED_SHORT_8_8_APPLE; 	 
+#else 	 
+            type = GL_UNSIGNED_SHORT_8_8_REV_APPLE; 	 
+#endif 	 
+//        } else { 	 
+//            SDL_SetError("Unsupported texture format"); 	 
+//            return -1; 	 
+//        } 	 
+        break;
+#else
     case SDL_PIXELFORMAT_UYVY:
         if (renderdata->GL_ARB_fragment_program_supported) {
             if (renderdata->fragment_program_UYVY == 0) {
@@ -680,6 +700,7 @@
             return -1;
         }
         break;
+#endif
     default:
         SDL_SetError("Unsupported texture format");
         return -1;
@@ -867,7 +888,7 @@
     }
     renderdata->glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
     renderdata->glPixelStorei(GL_UNPACK_ROW_LENGTH,
-                              (pitch / bytes_per_pixel(texture->format) / ((GL_TextureData *)texture->driverdata)->HACK_RYAN_FIXME));
+                              (pitch / bytes_per_pixel(texture->format)) / ((GL_TextureData *)texture->driverdata)->HACK_RYAN_FIXME);
 }
 
 static int