Differential D7320 Diff 23411 source/blender/editors/screen/screen_draw.c

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source/blender/editors/screen/screen_draw.c

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	* Calculates a scale factor to squash the preview for \a screen into a rectangle			* Calculates a scale factor to squash the preview for \a screen into a rectangle
	* of given size and aspect.			* of given size and aspect.
	*/			*/
	static void screen_preview_scale_get(			static void screen_preview_scale_get(
	const bScreen *screen, float size_x, float size_y, const float asp[2], float r_scale[2])			const bScreen *screen, float size_x, float size_y, const float asp[2], float r_scale[2])
	{			{
	float max_x = 0, max_y = 0;			float max_x = 0, max_y = 0;

	for (ScrArea *area = screen->areabase.first; area; area = area->next) {			LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
	max_x = MAX2(max_x, area->totrct.xmax);			max_x = MAX2(max_x, area->totrct.xmax);
	max_y = MAX2(max_y, area->totrct.ymax);			max_y = MAX2(max_y, area->totrct.ymax);
	}			}
	r_scale[0] = (size_x * asp[0]) / max_x;			r_scale[0] = (size_x * asp[0]) / max_x;
	r_scale[1] = (size_y * asp[1]) / max_y;			r_scale[1] = (size_y * asp[1]) / max_y;
	}			}

	static void screen_preview_draw_areas(const bScreen *screen,			static void screen_preview_draw_areas(const bScreen *screen,
	const float scale[2],			const float scale[2],
	const float col[4],			const float col[4],
	const float ofs_between_areas)			const float ofs_between_areas)
	{			{
	const float ofs_h = ofs_between_areas * 0.5f;			const float ofs_h = ofs_between_areas * 0.5f;
	uint pos = GPU_vertformat_attr_add(immVertexFormat(), "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);			uint pos = GPU_vertformat_attr_add(immVertexFormat(), "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);

	immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);			immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
	immUniformColor4fv(col);			immUniformColor4fv(col);

	for (ScrArea *area = screen->areabase.first; area; area = area->next) {			LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
	rctf rect = {			rctf rect = {
	.xmin = area->totrct.xmin * scale[0] + ofs_h,			.xmin = area->totrct.xmin * scale[0] + ofs_h,
	.xmax = area->totrct.xmax * scale[0] - ofs_h,			.xmax = area->totrct.xmax * scale[0] - ofs_h,
	.ymin = area->totrct.ymin * scale[1] + ofs_h,			.ymin = area->totrct.ymin * scale[1] + ofs_h,
	.ymax = area->totrct.ymax * scale[1] - ofs_h,			.ymax = area->totrct.ymax * scale[1] - ofs_h,
	};			};

	immBegin(GPU_PRIM_TRI_FAN, 4);			immBegin(GPU_PRIM_TRI_FAN, 4);
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