Differential D4350 Diff 14205 source/blender/gpu/intern/gpu_draw.c

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source/blender/gpu/intern/gpu_draw.c

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	void GPU_disable_program_point_size(void)			void GPU_disable_program_point_size(void)
	{			{
	glDisable(GL_PROGRAM_POINT_SIZE);			glDisable(GL_PROGRAM_POINT_SIZE);
	}			}

	/** \name Framebuffer color depth, for selection codes			/** \name Framebuffer color depth, for selection codes
	* \{ */			* \{ */

	#ifdef __APPLE__

	/* apple seems to round colors to below and up on some configs */

	static uint index_to_framebuffer(int index)
	{
	uint i = index;

	switch (GPU_color_depth()) {
	case 12:
	i = ((i & 0xF00) << 12) + ((i & 0xF0) << 8) + ((i & 0xF) << 4);
	/* sometimes dithering subtracts! */
	i \|= 0x070707;
	break;
	case 15:
	case 16:
	i = ((i & 0x7C00) << 9) + ((i & 0x3E0) << 6) + ((i & 0x1F) << 3);
	i \|= 0x030303;
	break;
	case 24:
	break;
	default: /* 18 bits... */
	i = ((i & 0x3F000) << 6) + ((i & 0xFC0) << 4) + ((i & 0x3F) << 2);
	i \|= 0x010101;
	break;
	}

	return i;
	}

	#else

	/* this is the old method as being in use for ages.... seems to work? colors are rounded to lower values */

	static uint index_to_framebuffer(int index)
	{
	uint i = index;

	switch (GPU_color_depth()) {
	case 8:
	i = ((i & 48) << 18) + ((i & 12) << 12) + ((i & 3) << 6);
	i \|= 0x3F3F3F;
	break;
	case 12:
	i = ((i & 0xF00) << 12) + ((i & 0xF0) << 8) + ((i & 0xF) << 4);
	/* sometimes dithering subtracts! */
	i \|= 0x0F0F0F;
	break;
	case 15:
	case 16:
	i = ((i & 0x7C00) << 9) + ((i & 0x3E0) << 6) + ((i & 0x1F) << 3);
	i \|= 0x070707;
	break;
	case 24:
	break;
	default: /* 18 bits... */
	i = ((i & 0x3F000) << 6) + ((i & 0xFC0) << 4) + ((i & 0x3F) << 2);
	i \|= 0x030303;
	break;
	}

	return i;
	}

	#endif


	void GPU_select_index_set(int index)
	{
	const int col = index_to_framebuffer(index);
	glColor3ub(( (col) & 0xFF),
	(((col) >> 8) & 0xFF),
	(((col) >> 16) & 0xFF));
	}

	void GPU_select_index_get(int index, int *r_col)
	{
	const int col = index_to_framebuffer(index);
	char c_col = (char )r_col;
	c_col[0] = (col & 0xFF); /* red */
	c_col[1] = ((col >> 8) & 0xFF); /* green */
	c_col[2] = ((col >> 16) & 0xFF); /* blue */
	c_col[3] = 0xFF; /* alpha */
	}


	#define INDEX_FROM_BUF_8(col) ((((col) & 0xC00000) >> 18) + (((col) & 0xC000) >> 12) + (((col) & 0xC0) >> 6))
	#define INDEX_FROM_BUF_12(col) ((((col) & 0xF00000) >> 12) + (((col) & 0xF000) >> 8) + (((col) & 0xF0) >> 4))
	#define INDEX_FROM_BUF_15_16(col) ((((col) & 0xF80000) >> 9) + (((col) & 0xF800) >> 6) + (((col) & 0xF8) >> 3))
	#define INDEX_FROM_BUF_18(col) ((((col) & 0xFC0000) >> 6) + (((col) & 0xFC00) >> 4) + (((col) & 0xFC) >> 2))
	#define INDEX_FROM_BUF_24(col) ((col) & 0xFFFFFF)

	int GPU_select_to_index(uint col)
	{
	if (col == 0) {
	return 0;
	}

	switch (GPU_color_depth()) {
	case 8: return INDEX_FROM_BUF_8(col);
	case 12: return INDEX_FROM_BUF_12(col);
	case 15:
	case 16: return INDEX_FROM_BUF_15_16(col);
	case 24: return INDEX_FROM_BUF_24(col);
	default: return INDEX_FROM_BUF_18(col);
	}
	}

	void GPU_select_to_index_array(uint *col, const uint size)
	{
	#define INDEX_BUF_ARRAY(INDEX_FROM_BUF_BITS) \
	for (i = size; i--; col++) { \
	if ((c = *col)) { \
	*col = INDEX_FROM_BUF_BITS(c); \
	} \
	} ((void)0)

	if (size > 0) {
	uint i, c;

	switch (GPU_color_depth()) {
	case 8:
	INDEX_BUF_ARRAY(INDEX_FROM_BUF_8);
	break;
	case 12:
	INDEX_BUF_ARRAY(INDEX_FROM_BUF_12);
	break;
	case 15:
	case 16:
	INDEX_BUF_ARRAY(INDEX_FROM_BUF_15_16);
	break;
	case 24:
	INDEX_BUF_ARRAY(INDEX_FROM_BUF_24);
	break;
	default:
	INDEX_BUF_ARRAY(INDEX_FROM_BUF_18);
	break;
	}
	}

	#undef INDEX_BUF_ARRAY
	}

	#define STATE_STACK_DEPTH 16			#define STATE_STACK_DEPTH 16

	typedef struct {			typedef struct {
	eGPUAttrMask mask;			eGPUAttrMask mask;

	/* GL_ENABLE_BIT */			/* GL_ENABLE_BIT */
	uint is_blend : 1;			uint is_blend : 1;
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