pixman-access.c

嵌入式图形库

static FASTCALL void
fbStore_b8g8r8 (pixman_image_t *image,
		uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    uint8_t *pixel = ((uint8_t *) bits) + 3*x;
    for (i = 0; i < width; ++i) {
	uint32_t val = values[i];
#if IMAGE_BYTE_ORDER == MSBFirst
	WRITE(image, pixel++, Blue(val));
	WRITE(image, pixel++, Green(val));
	WRITE(image, pixel++, Red(val));
#else
	WRITE(image, pixel++, Red(val));
	WRITE(image, pixel++, Green(val));
	WRITE(image, pixel++, Blue(val));
#endif
    }
}

static FASTCALL void
fbStore_r5g6b5 (pixman_image_t *image,
		uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    uint16_t *pixel = ((uint16_t *) bits) + x;
    for (i = 0; i < width; ++i) {
	uint32_t s = values[i];
	WRITE(image, pixel++, ((s >> 3) & 0x001f) |
	      ((s >> 5) & 0x07e0) |
	      ((s >> 8) & 0xf800));
    }
}

static FASTCALL void
fbStore_b5g6r5 (pixman_image_t *image,
		uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    uint16_t  *pixel = ((uint16_t *) bits) + x;
    for (i = 0; i < width; ++i) {
	Split(values[i]);
	WRITE(image, pixel++, ((b << 8) & 0xf800) |
	      ((g << 3) & 0x07e0) |
	      ((r >> 3)         ));
    }
}

static FASTCALL void
fbStore_a1r5g5b5 (pixman_image_t *image,
		  uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    uint16_t  *pixel = ((uint16_t *) bits) + x;
    for (i = 0; i < width; ++i) {
	Splita(values[i]);
	WRITE(image, pixel++, ((a << 8) & 0x8000) |
	      ((r << 7) & 0x7c00) |
	      ((g << 2) & 0x03e0) |
	      ((b >> 3)         ));
    }
}

static FASTCALL void
fbStore_x1r5g5b5 (pixman_image_t *image,
		  uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    uint16_t  *pixel = ((uint16_t *) bits) + x;
    for (i = 0; i < width; ++i) {
	Split(values[i]);
	WRITE(image, pixel++, ((r << 7) & 0x7c00) |
	      ((g << 2) & 0x03e0) |
	      ((b >> 3)         ));
    }
}

static FASTCALL void
fbStore_a1b5g5r5 (pixman_image_t *image,
		  uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    uint16_t  *pixel = ((uint16_t *) bits) + x;
    for (i = 0; i < width; ++i) {
	Splita(values[i]);
	WRITE(image, pixel++, ((a << 8) & 0x8000) |
	      ((b << 7) & 0x7c00) |
	      ((g << 2) & 0x03e0) |
	      ((r >> 3)         ));
    }
}

static FASTCALL void
fbStore_x1b5g5r5 (pixman_image_t *image,
		  uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    uint16_t  *pixel = ((uint16_t *) bits) + x;
    for (i = 0; i < width; ++i) {
	Split(values[i]);
	WRITE(image, pixel++, ((b << 7) & 0x7c00) |
	      ((g << 2) & 0x03e0) |
	      ((r >> 3)         ));
    }
}

static FASTCALL void
fbStore_a4r4g4b4 (pixman_image_t *image,
		  uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    uint16_t  *pixel = ((uint16_t *) bits) + x;
    for (i = 0; i < width; ++i) {
	Splita(values[i]);
	WRITE(image, pixel++, ((a << 8) & 0xf000) |
	      ((r << 4) & 0x0f00) |
	      ((g     ) & 0x00f0) |
	      ((b >> 4)         ));
    }
}

static FASTCALL void
fbStore_x4r4g4b4 (pixman_image_t *image,
		  uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    uint16_t  *pixel = ((uint16_t *) bits) + x;
    for (i = 0; i < width; ++i) {
	Split(values[i]);
	WRITE(image, pixel++, ((r << 4) & 0x0f00) |
	      ((g     ) & 0x00f0) |
	      ((b >> 4)         ));
    }
}

static FASTCALL void
fbStore_a4b4g4r4 (pixman_image_t *image,
		  uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    uint16_t  *pixel = ((uint16_t *) bits) + x;
    for (i = 0; i < width; ++i) {
	Splita(values[i]);
	WRITE(image, pixel++, ((a << 8) & 0xf000) |
	      ((b << 4) & 0x0f00) |
	      ((g     ) & 0x00f0) |
	      ((r >> 4)         ));
    }
}

static FASTCALL void
fbStore_x4b4g4r4 (pixman_image_t *image,
		  uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    uint16_t  *pixel = ((uint16_t *) bits) + x;
    for (i = 0; i < width; ++i) {
	Split(values[i]);
	WRITE(image, pixel++, ((b << 4) & 0x0f00) |
	      ((g     ) & 0x00f0) |
	      ((r >> 4)         ));
    }
}

static FASTCALL void
fbStore_a8 (pixman_image_t *image,
	    uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    uint8_t   *pixel = ((uint8_t *) bits) + x;
    for (i = 0; i < width; ++i) {
	WRITE(image, pixel++, values[i] >> 24);
    }
}

static FASTCALL void
fbStore_r3g3b2 (pixman_image_t *image,
		uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    uint8_t   *pixel = ((uint8_t *) bits) + x;
    for (i = 0; i < width; ++i) {
	Split(values[i]);
	WRITE(image, pixel++,
	      ((r     ) & 0xe0) |
	      ((g >> 3) & 0x1c) |
	      ((b >> 6)       ));
    }
}

static FASTCALL void
fbStore_b2g3r3 (pixman_image_t *image,
		uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    uint8_t   *pixel = ((uint8_t *) bits) + x;
    for (i = 0; i < width; ++i) {
	Split(values[i]);
	WRITE(image, pixel++,
	      ((b     ) & 0xc0) |
	      ((g >> 2) & 0x1c) |
	      ((r >> 5)       ));
    }
}

static FASTCALL void
fbStore_a2r2g2b2 (pixman_image_t *image,
		  uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    uint8_t   *pixel = ((uint8_t *) bits) + x;
    for (i = 0; i < width; ++i) {
	Splita(values[i]);
	WRITE(image, pixel++, ((a     ) & 0xc0) |
	      ((r >> 2) & 0x30) |
	      ((g >> 4) & 0x0c) |
	      ((b >> 6)       ));
    }
}

static FASTCALL void
fbStore_c8 (pixman_image_t *image,
	    uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    uint8_t   *pixel = ((uint8_t *) bits) + x;
    for (i = 0; i < width; ++i) {
	WRITE(image, pixel++, miIndexToEnt24(indexed,values[i]));
    }
}

static FASTCALL void
fbStore_x4a4 (pixman_image_t *image,
	      uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    uint8_t   *pixel = ((uint8_t *) bits) + x;
    for (i = 0; i < width; ++i) {
	WRITE(image, pixel++, values[i] >> 28);
    }
}

#define Store8(img,l,o,v)  (WRITE(img, (uint8_t *)(l) + ((o) >> 3), (v)))
#if IMAGE_BYTE_ORDER == MSBFirst
#define Store4(img,l,o,v)  Store8(img,l,o,((o) & 4 ?				\
				   (Fetch8(img,l,o) & 0xf0) | (v) :		\
				   (Fetch8(img,l,o) & 0x0f) | ((v) << 4)))
#else
#define Store4(img,l,o,v)  Store8(img,l,o,((o) & 4 ?			       \
				   (Fetch8(img,l,o) & 0x0f) | ((v) << 4) : \
				   (Fetch8(img,l,o) & 0xf0) | (v)))
#endif

static FASTCALL void
fbStore_a4 (pixman_image_t *image,
	    uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    for (i = 0; i < width; ++i) {
	Store4(image, bits, i + x, values[i]>>28);
    }
}

static FASTCALL void
fbStore_r1g2b1 (pixman_image_t *image,
		uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    for (i = 0; i < width; ++i) {
	uint32_t  pixel;

	Split(values[i]);
	pixel = (((r >> 4) & 0x8) |
		 ((g >> 5) & 0x6) |
		 ((b >> 7)      ));
	Store4(image, bits, i + x, pixel);
    }
}

static FASTCALL void
fbStore_b1g2r1 (pixman_image_t *image,
		uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    for (i = 0; i < width; ++i) {
	uint32_t  pixel;

	Split(values[i]);
	pixel = (((b >> 4) & 0x8) |
		 ((g >> 5) & 0x6) |
		 ((r >> 7)      ));
	Store4(image, bits, i + x, pixel);
    }
}

static FASTCALL void
fbStore_a1r1g1b1 (pixman_image_t *image,
		  uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    for (i = 0; i < width; ++i) {
	uint32_t  pixel;
	Splita(values[i]);
	pixel = (((a >> 4) & 0x8) |
		 ((r >> 5) & 0x4) |
		 ((g >> 6) & 0x2) |
		 ((b >> 7)      ));
	Store4(image, bits, i + x, pixel);
    }
}

static FASTCALL void
fbStore_a1b1g1r1 (pixman_image_t *image,
		  uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    for (i = 0; i < width; ++i) {
	uint32_t  pixel;
	Splita(values[i]);
	pixel = (((a >> 4) & 0x8) |
		 ((b >> 5) & 0x4) |
		 ((g >> 6) & 0x2) |
		 ((r >> 7)      ));
	Store4(image, bits, i + x, pixel);
    }
}

static FASTCALL void
fbStore_c4 (pixman_image_t *image,
	    uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    for (i = 0; i < width; ++i) {
	uint32_t  pixel;

	pixel = miIndexToEnt24(indexed, values[i]);
	Store4(image, bits, i + x, pixel);
    }
}

static FASTCALL void
fbStore_a1 (pixman_image_t *image,
	    uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    for (i = 0; i < width; ++i) {
	uint32_t  *pixel = ((uint32_t *) bits) + ((i+x) >> 5);
	uint32_t  mask = FbStipMask((i+x) & 0x1f, 1);

	uint32_t v = values[i] & 0x80000000 ? mask : 0;
	WRITE(image, pixel, (READ(image, pixel) & ~mask) | v);
    }
}

static FASTCALL void
fbStore_g1 (pixman_image_t *image,
	    uint32_t *bits, const uint32_t *values, int x, int width, const pixman_indexed_t * indexed)
{
    int i;
    for (i = 0; i < width; ++i) {
	uint32_t  *pixel = ((uint32_t *) bits) + ((i+x) >> 5);
	uint32_t  mask = FbStipMask((i+x) & 0x1f, 1);

	uint32_t v = miIndexToEntY24(indexed,values[i]) ? mask : 0;
	WRITE(image, pixel, (READ(image, pixel) & ~mask) | v);
    }
}


storeProc STORE_PROC_FOR_PICTURE (bits_image_t * pict)
{
    switch(pict->format) {
    case PIXMAN_a8r8g8b8: return fbStore_a8r8g8b8;
    case PIXMAN_x8r8g8b8: return fbStore_x8r8g8b8;
    case PIXMAN_a8b8g8r8: return fbStore_a8b8g8r8;
    case PIXMAN_x8b8g8r8: return fbStore_x8b8g8r8;

        /* 24bpp formats */
    case PIXMAN_r8g8b8: return fbStore_r8g8b8;
    case PIXMAN_b8g8r8: return fbStore_b8g8r8;

        /* 16bpp formats */
    case PIXMAN_r5g6b5: return fbStore_r5g6b5;
    case PIXMAN_b5g6r5: return fbStore_b5g6r5;

    case PIXMAN_a1r5g5b5: return fbStore_a1r5g5b5;
    case PIXMAN_x1r5g5b5: return fbStore_x1r5g5b5;
    case PIXMAN_a1b5g5r5: return fbStore_a1b5g5r5;
    case PIXMAN_x1b5g5r5: return fbStore_x1b5g5r5;
    case PIXMAN_a4r4g4b4: return fbStore_a4r4g4b4;
    case PIXMAN_x4r4g4b4: return fbStore_x4r4g4b4;
    case PIXMAN_a4b4g4r4: return fbStore_a4b4g4r4;
    case PIXMAN_x4b4g4r4: return fbStore_x4b4g4r4;

        /* 8bpp formats */
    case PIXMAN_a8: return  fbStore_a8;
    case PIXMAN_r3g3b2: return fbStore_r3g3b2;
    case PIXMAN_b2g3r3: return fbStore_b2g3r3;
    case PIXMAN_a2r2g2b2: return fbStore_a2r2g2b2;
    case PIXMAN_c8: return  fbStore_c8;
    case PIXMAN_g8: return  fbStore_c8;
    case PIXMAN_x4a4: return fbStore_x4a4;

        /* 4bpp formats */
    case PIXMAN_a4: return  fbStore_a4;
    case PIXMAN_r1g2b1: return fbStore_r1g2b1;
    case PIXMAN_b1g2r1: return fbStore_b1g2r1;
    case PIXMAN_a1r1g1b1: return fbStore_a1r1g1b1;
    case PIXMAN_a1b1g1r1: return fbStore_a1b1g1r1;
    case PIXMAN_c4: return  fbStore_c4;
    case PIXMAN_g4: return  fbStore_c4;

        /* 1bpp formats */
    case PIXMAN_a1: return  fbStore_a1;
    case PIXMAN_g1: return  fbStore_g1;
    default:
        return NULL;
    }
}