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Diffstat (limited to 'hw/display/pxa2xx_lcd.c')
-rw-r--r--hw/display/pxa2xx_lcd.c427
1 files changed, 425 insertions, 2 deletions
diff --git a/hw/display/pxa2xx_lcd.c b/hw/display/pxa2xx_lcd.c
index 33343832bb..2887ce496b 100644
--- a/hw/display/pxa2xx_lcd.c
+++ b/hw/display/pxa2xx_lcd.c
@@ -190,8 +190,431 @@ typedef struct QEMU_PACKED {
/* Size of a pixel in the QEMU UI output surface, in bytes */
#define DEST_PIXEL_WIDTH 4
-#define BITS 32
-#include "pxa2xx_template.h"
+/* Line drawing code to handle the various possible guest pixel formats */
+
+# define SKIP_PIXEL(to) do { to += deststep; } while (0)
+# define COPY_PIXEL(to, from) \
+ do { \
+ *(uint32_t *) to = from; \
+ SKIP_PIXEL(to); \
+ } while (0)
+
+#ifdef HOST_WORDS_BIGENDIAN
+# define SWAP_WORDS 1
+#endif
+
+#define FN_2(x) FN(x + 1) FN(x)
+#define FN_4(x) FN_2(x + 2) FN_2(x)
+
+static void pxa2xx_draw_line2(void *opaque, uint8_t *dest, const uint8_t *src,
+ int width, int deststep)
+{
+ uint32_t *palette = opaque;
+ uint32_t data;
+ while (width > 0) {
+ data = *(uint32_t *) src;
+#define FN(x) COPY_PIXEL(dest, palette[(data >> ((x) * 2)) & 3]);
+#ifdef SWAP_WORDS
+ FN_4(12)
+ FN_4(8)
+ FN_4(4)
+ FN_4(0)
+#else
+ FN_4(0)
+ FN_4(4)
+ FN_4(8)
+ FN_4(12)
+#endif
+#undef FN
+ width -= 16;
+ src += 4;
+ }
+}
+
+static void pxa2xx_draw_line4(void *opaque, uint8_t *dest, const uint8_t *src,
+ int width, int deststep)
+{
+ uint32_t *palette = opaque;
+ uint32_t data;
+ while (width > 0) {
+ data = *(uint32_t *) src;
+#define FN(x) COPY_PIXEL(dest, palette[(data >> ((x) * 4)) & 0xf]);
+#ifdef SWAP_WORDS
+ FN_2(6)
+ FN_2(4)
+ FN_2(2)
+ FN_2(0)
+#else
+ FN_2(0)
+ FN_2(2)
+ FN_2(4)
+ FN_2(6)
+#endif
+#undef FN
+ width -= 8;
+ src += 4;
+ }
+}
+
+static void pxa2xx_draw_line8(void *opaque, uint8_t *dest, const uint8_t *src,
+ int width, int deststep)
+{
+ uint32_t *palette = opaque;
+ uint32_t data;
+ while (width > 0) {
+ data = *(uint32_t *) src;
+#define FN(x) COPY_PIXEL(dest, palette[(data >> (x)) & 0xff]);
+#ifdef SWAP_WORDS
+ FN(24)
+ FN(16)
+ FN(8)
+ FN(0)
+#else
+ FN(0)
+ FN(8)
+ FN(16)
+ FN(24)
+#endif
+#undef FN
+ width -= 4;
+ src += 4;
+ }
+}
+
+static void pxa2xx_draw_line16(void *opaque, uint8_t *dest, const uint8_t *src,
+ int width, int deststep)
+{
+ uint32_t data;
+ unsigned int r, g, b;
+ while (width > 0) {
+ data = *(uint32_t *) src;
+#ifdef SWAP_WORDS
+ data = bswap32(data);
+#endif
+ b = (data & 0x1f) << 3;
+ data >>= 5;
+ g = (data & 0x3f) << 2;
+ data >>= 6;
+ r = (data & 0x1f) << 3;
+ data >>= 5;
+ COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
+ b = (data & 0x1f) << 3;
+ data >>= 5;
+ g = (data & 0x3f) << 2;
+ data >>= 6;
+ r = (data & 0x1f) << 3;
+ COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
+ width -= 2;
+ src += 4;
+ }
+}
+
+static void pxa2xx_draw_line16t(void *opaque, uint8_t *dest, const uint8_t *src,
+ int width, int deststep)
+{
+ uint32_t data;
+ unsigned int r, g, b;
+ while (width > 0) {
+ data = *(uint32_t *) src;
+#ifdef SWAP_WORDS
+ data = bswap32(data);
+#endif
+ b = (data & 0x1f) << 3;
+ data >>= 5;
+ g = (data & 0x1f) << 3;
+ data >>= 5;
+ r = (data & 0x1f) << 3;
+ data >>= 5;
+ if (data & 1) {
+ SKIP_PIXEL(dest);
+ } else {
+ COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
+ }
+ data >>= 1;
+ b = (data & 0x1f) << 3;
+ data >>= 5;
+ g = (data & 0x1f) << 3;
+ data >>= 5;
+ r = (data & 0x1f) << 3;
+ data >>= 5;
+ if (data & 1) {
+ SKIP_PIXEL(dest);
+ } else {
+ COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
+ }
+ width -= 2;
+ src += 4;
+ }
+}
+
+static void pxa2xx_draw_line18(void *opaque, uint8_t *dest, const uint8_t *src,
+ int width, int deststep)
+{
+ uint32_t data;
+ unsigned int r, g, b;
+ while (width > 0) {
+ data = *(uint32_t *) src;
+#ifdef SWAP_WORDS
+ data = bswap32(data);
+#endif
+ b = (data & 0x3f) << 2;
+ data >>= 6;
+ g = (data & 0x3f) << 2;
+ data >>= 6;
+ r = (data & 0x3f) << 2;
+ COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
+ width -= 1;
+ src += 4;
+ }
+}
+
+/* The wicked packed format */
+static void pxa2xx_draw_line18p(void *opaque, uint8_t *dest, const uint8_t *src,
+ int width, int deststep)
+{
+ uint32_t data[3];
+ unsigned int r, g, b;
+ while (width > 0) {
+ data[0] = *(uint32_t *) src;
+ src += 4;
+ data[1] = *(uint32_t *) src;
+ src += 4;
+ data[2] = *(uint32_t *) src;
+ src += 4;
+#ifdef SWAP_WORDS
+ data[0] = bswap32(data[0]);
+ data[1] = bswap32(data[1]);
+ data[2] = bswap32(data[2]);
+#endif
+ b = (data[0] & 0x3f) << 2;
+ data[0] >>= 6;
+ g = (data[0] & 0x3f) << 2;
+ data[0] >>= 6;
+ r = (data[0] & 0x3f) << 2;
+ data[0] >>= 12;
+ COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
+ b = (data[0] & 0x3f) << 2;
+ data[0] >>= 6;
+ g = ((data[1] & 0xf) << 4) | (data[0] << 2);
+ data[1] >>= 4;
+ r = (data[1] & 0x3f) << 2;
+ data[1] >>= 12;
+ COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
+ b = (data[1] & 0x3f) << 2;
+ data[1] >>= 6;
+ g = (data[1] & 0x3f) << 2;
+ data[1] >>= 6;
+ r = ((data[2] & 0x3) << 6) | (data[1] << 2);
+ data[2] >>= 8;
+ COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
+ b = (data[2] & 0x3f) << 2;
+ data[2] >>= 6;
+ g = (data[2] & 0x3f) << 2;
+ data[2] >>= 6;
+ r = data[2] << 2;
+ COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
+ width -= 4;
+ }
+}
+
+static void pxa2xx_draw_line19(void *opaque, uint8_t *dest, const uint8_t *src,
+ int width, int deststep)
+{
+ uint32_t data;
+ unsigned int r, g, b;
+ while (width > 0) {
+ data = *(uint32_t *) src;
+#ifdef SWAP_WORDS
+ data = bswap32(data);
+#endif
+ b = (data & 0x3f) << 2;
+ data >>= 6;
+ g = (data & 0x3f) << 2;
+ data >>= 6;
+ r = (data & 0x3f) << 2;
+ data >>= 6;
+ if (data & 1) {
+ SKIP_PIXEL(dest);
+ } else {
+ COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
+ }
+ width -= 1;
+ src += 4;
+ }
+}
+
+/* The wicked packed format */
+static void pxa2xx_draw_line19p(void *opaque, uint8_t *dest, const uint8_t *src,
+ int width, int deststep)
+{
+ uint32_t data[3];
+ unsigned int r, g, b;
+ while (width > 0) {
+ data[0] = *(uint32_t *) src;
+ src += 4;
+ data[1] = *(uint32_t *) src;
+ src += 4;
+ data[2] = *(uint32_t *) src;
+ src += 4;
+# ifdef SWAP_WORDS
+ data[0] = bswap32(data[0]);
+ data[1] = bswap32(data[1]);
+ data[2] = bswap32(data[2]);
+# endif
+ b = (data[0] & 0x3f) << 2;
+ data[0] >>= 6;
+ g = (data[0] & 0x3f) << 2;
+ data[0] >>= 6;
+ r = (data[0] & 0x3f) << 2;
+ data[0] >>= 6;
+ if (data[0] & 1) {
+ SKIP_PIXEL(dest);
+ } else {
+ COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
+ }
+ data[0] >>= 6;
+ b = (data[0] & 0x3f) << 2;
+ data[0] >>= 6;
+ g = ((data[1] & 0xf) << 4) | (data[0] << 2);
+ data[1] >>= 4;
+ r = (data[1] & 0x3f) << 2;
+ data[1] >>= 6;
+ if (data[1] & 1) {
+ SKIP_PIXEL(dest);
+ } else {
+ COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
+ }
+ data[1] >>= 6;
+ b = (data[1] & 0x3f) << 2;
+ data[1] >>= 6;
+ g = (data[1] & 0x3f) << 2;
+ data[1] >>= 6;
+ r = ((data[2] & 0x3) << 6) | (data[1] << 2);
+ data[2] >>= 2;
+ if (data[2] & 1) {
+ SKIP_PIXEL(dest);
+ } else {
+ COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
+ }
+ data[2] >>= 6;
+ b = (data[2] & 0x3f) << 2;
+ data[2] >>= 6;
+ g = (data[2] & 0x3f) << 2;
+ data[2] >>= 6;
+ r = data[2] << 2;
+ data[2] >>= 6;
+ if (data[2] & 1) {
+ SKIP_PIXEL(dest);
+ } else {
+ COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
+ }
+ width -= 4;
+ }
+}
+
+static void pxa2xx_draw_line24(void *opaque, uint8_t *dest, const uint8_t *src,
+ int width, int deststep)
+{
+ uint32_t data;
+ unsigned int r, g, b;
+ while (width > 0) {
+ data = *(uint32_t *) src;
+#ifdef SWAP_WORDS
+ data = bswap32(data);
+#endif
+ b = data & 0xff;
+ data >>= 8;
+ g = data & 0xff;
+ data >>= 8;
+ r = data & 0xff;
+ COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
+ width -= 1;
+ src += 4;
+ }
+}
+
+static void pxa2xx_draw_line24t(void *opaque, uint8_t *dest, const uint8_t *src,
+ int width, int deststep)
+{
+ uint32_t data;
+ unsigned int r, g, b;
+ while (width > 0) {
+ data = *(uint32_t *) src;
+#ifdef SWAP_WORDS
+ data = bswap32(data);
+#endif
+ b = (data & 0x7f) << 1;
+ data >>= 7;
+ g = data & 0xff;
+ data >>= 8;
+ r = data & 0xff;
+ data >>= 8;
+ if (data & 1) {
+ SKIP_PIXEL(dest);
+ } else {
+ COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
+ }
+ width -= 1;
+ src += 4;
+ }
+}
+
+static void pxa2xx_draw_line25(void *opaque, uint8_t *dest, const uint8_t *src,
+ int width, int deststep)
+{
+ uint32_t data;
+ unsigned int r, g, b;
+ while (width > 0) {
+ data = *(uint32_t *) src;
+#ifdef SWAP_WORDS
+ data = bswap32(data);
+#endif
+ b = data & 0xff;
+ data >>= 8;
+ g = data & 0xff;
+ data >>= 8;
+ r = data & 0xff;
+ data >>= 8;
+ if (data & 1) {
+ SKIP_PIXEL(dest);
+ } else {
+ COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
+ }
+ width -= 1;
+ src += 4;
+ }
+}
+
+/* Overlay planes disabled, no transparency */
+static drawfn pxa2xx_draw_fn_32[16] = {
+ [0 ... 0xf] = NULL,
+ [pxa_lcdc_2bpp] = pxa2xx_draw_line2,
+ [pxa_lcdc_4bpp] = pxa2xx_draw_line4,
+ [pxa_lcdc_8bpp] = pxa2xx_draw_line8,
+ [pxa_lcdc_16bpp] = pxa2xx_draw_line16,
+ [pxa_lcdc_18bpp] = pxa2xx_draw_line18,
+ [pxa_lcdc_18pbpp] = pxa2xx_draw_line18p,
+ [pxa_lcdc_24bpp] = pxa2xx_draw_line24,
+};
+
+/* Overlay planes enabled, transparency used */
+static drawfn pxa2xx_draw_fn_32t[16] = {
+ [0 ... 0xf] = NULL,
+ [pxa_lcdc_4bpp] = pxa2xx_draw_line4,
+ [pxa_lcdc_8bpp] = pxa2xx_draw_line8,
+ [pxa_lcdc_16bpp] = pxa2xx_draw_line16t,
+ [pxa_lcdc_19bpp] = pxa2xx_draw_line19,
+ [pxa_lcdc_19pbpp] = pxa2xx_draw_line19p,
+ [pxa_lcdc_24bpp] = pxa2xx_draw_line24t,
+ [pxa_lcdc_25bpp] = pxa2xx_draw_line25,
+};
+
+#undef COPY_PIXEL
+#undef SKIP_PIXEL
+
+#ifdef SWAP_WORDS
+# undef SWAP_WORDS
+#endif
/* Route internal interrupt lines to the global IC */
static void pxa2xx_lcdc_int_update(PXA2xxLCDState *s)
generated by cgit v1.2.3 (git 2.26.2) at 2025-02-08 12:21:32 +0000