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Bug 500200. cairo-ddraw: Fallback if the source surface is larger than the maximum texture size. r=vlad

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If the source surface is larger than the maximum texture size we fallback to software compositing
instead of drawing the wrong things.
This commit is contained in:
Jeff Muizelaar 2009-10-21 12:49:20 -04:00
parent e505d83e7c
commit 6028d14806
1 changed files with 9 additions and 0 deletions
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9
gfx/cairo/cairo/src/cairo-ddraw-surface.c
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@ -201,6 +201,9 @@ static EGLDisplay _cairo_ddraw_egl_dpy = EGL_NO_DISPLAY;
static EGLContext _cairo_ddraw_egl_dummy_ctx = EGL_NO_CONTEXT;
static EGLSurface _cairo_ddraw_egl_dummy_surface = EGL_NO_SURFACE;
static GLint _cairo_ddraw_ogl_max_texture_size;
static cairo_status_t _cairo_ddraw_ogl_init(void);
static cairo_status_t
@ -1505,6 +1508,10 @@ _cairo_ddraw_ogl_analyze_pattern (const cairo_pattern_t * pattern,
_cairo_surface_get_extents (surface, &extents);
if (extents.width > _cairo_ddraw_ogl_max_texture_size ||
extents.height > _cairo_ddraw_ogl_max_texture_size)
return CAIRO_DDRAW_OGL_TEXTURE_UNSUPPORTED;
if (extents_out)
*extents_out = extents;
@ -1911,6 +1918,8 @@ _cairo_ddraw_ogl_init()
_cairo_ddraw_ogl_next_scratch_buffer = 0;
glGetIntegerv (GL_MAX_TEXTURE_SIZE, &_cairo_ddraw_ogl_max_texture_size);
atexit (_cairo_ddraw_ogl_fini);
return CAIRO_STATUS_SUCCESS;