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@ -18,34 +18,6 @@ |
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static const char gem_device[] = "/dev/dri/card0"; |
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static const char socket_name[] = "\0wayland"; |
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static void |
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unpremultiply_data(uint8_t *data, int width, int height, int stride) |
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{ |
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unsigned int i, j; |
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uint8_t *row; |
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for (j = 0; j < height; j++) { |
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row = data + j * stride; |
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for (i = 0; i < width; i++) { |
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uint8_t *b = &row[i * 4]; |
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uint32_t pixel; |
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uint8_t alpha; |
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memcpy (&pixel, b, sizeof (uint32_t)); |
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alpha = (pixel & 0xff000000) >> 24; |
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if (alpha == 0) { |
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b[0] = b[1] = b[2] = b[3] = 0; |
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} else { |
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b[0] = (((pixel & 0xff0000) >> 16) * 255 + alpha / 2) / alpha; |
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b[1] = (((pixel & 0x00ff00) >> 8) * 255 + alpha / 2) / alpha; |
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b[2] = (((pixel & 0x0000ff) >> 0) * 255 + alpha / 2) / alpha; |
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b[3] = alpha; |
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} |
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} |
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} |
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} |
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static uint32_t name_cairo_surface(int fd, cairo_surface_t *surface) |
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{ |
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struct drm_i915_gem_create create; |
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@ -59,8 +31,6 @@ static uint32_t name_cairo_surface(int fd, cairo_surface_t *surface) |
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stride = cairo_image_surface_get_stride(surface); |
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data = cairo_image_surface_get_data(surface); |
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unpremultiply_data(data, width, height, stride); |
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memset(&create, 0, sizeof(create)); |
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create.size = height * stride; |
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