aboutsummaryrefslogtreecommitdiffstats
path: root/distrib/sdl-1.2.15/src/video/ps2gs/SDL_gsyuv.c
diff options
context:
space:
mode:
Diffstat (limited to 'distrib/sdl-1.2.15/src/video/ps2gs/SDL_gsyuv.c')
-rw-r--r--distrib/sdl-1.2.15/src/video/ps2gs/SDL_gsyuv.c461
1 files changed, 461 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/src/video/ps2gs/SDL_gsyuv.c b/distrib/sdl-1.2.15/src/video/ps2gs/SDL_gsyuv.c
new file mode 100644
index 0000000..ec52a69
--- /dev/null
+++ b/distrib/sdl-1.2.15/src/video/ps2gs/SDL_gsyuv.c
@@ -0,0 +1,461 @@
+/*
+ SDL - Simple DirectMedia Layer
+ Copyright (C) 1997-2012 Sam Lantinga
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+ Sam Lantinga
+ slouken@libsdl.org
+*/
+#include "SDL_config.h"
+
+/* This is the Playstation 2 implementation of YUV video overlays */
+
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <asm/page.h> /* For definition of PAGE_SIZE */
+
+#include "SDL_video.h"
+#include "SDL_gsyuv_c.h"
+#include "../SDL_yuvfuncs.h"
+
+/* The maximum number of 16x16 pixel block converted at once */
+#define MAX_MACROBLOCKS 1024 /* 2^10 macroblocks at once */
+
+/* The functions used to manipulate video overlays */
+static struct private_yuvhwfuncs gs_yuvfuncs = {
+ GS_LockYUVOverlay,
+ GS_UnlockYUVOverlay,
+ GS_DisplayYUVOverlay,
+ GS_FreeYUVOverlay
+};
+
+struct private_yuvhwdata {
+ int ipu_fd;
+ Uint8 *pixels;
+ int macroblocks;
+ int dma_len;
+ caddr_t dma_mem;
+ caddr_t ipu_imem;
+ caddr_t ipu_omem;
+ caddr_t dma_tags;
+ unsigned long long *stretch_x1y1;
+ unsigned long long *stretch_x2y2;
+ struct ps2_plist plist;
+
+ /* These are just so we don't have to allocate them separately */
+ Uint16 pitches[3];
+ Uint8 *planes[3];
+};
+
+static int power_of_2(int value)
+{
+ int shift;
+
+ for ( shift = 0; (1<<shift) < value; ++shift ) {
+ /* Keep looking */ ;
+ }
+ return(shift);
+}
+
+SDL_Overlay *GS_CreateYUVOverlay(_THIS, int width, int height, Uint32 format, SDL_Surface *display)
+{
+ SDL_Overlay *overlay;
+ struct private_yuvhwdata *hwdata;
+ int map_offset;
+ unsigned long long *tags;
+ caddr_t base;
+ int bpp;
+ int fbp, fbw, psm;
+ int x, y, w, h;
+ int pnum;
+ struct ps2_packet *packet;
+ struct ps2_packet tex_packet;
+
+ /* We can only decode blocks of 16x16 pixels */
+ if ( (width & 15) || (height & 15) ) {
+ SDL_SetError("Overlay width/height must be multiples of 16");
+ return(NULL);
+ }
+ /* Make sure the image isn't too large for a single DMA transfer */
+ if ( ((width/16) * (height/16)) > MAX_MACROBLOCKS ) {
+ SDL_SetError("Overlay too large (maximum size: %d pixels)",
+ MAX_MACROBLOCKS * 16 * 16);
+ return(NULL);
+ }
+
+ /* Double-check the requested format. For simplicity, we'll only
+ support planar YUV formats.
+ */
+ switch (format) {
+ case SDL_YV12_OVERLAY:
+ case SDL_IYUV_OVERLAY:
+ /* Supported planar YUV format */
+ break;
+ default:
+ SDL_SetError("Unsupported YUV format");
+ return(NULL);
+ }
+
+ /* Create the overlay structure */
+ overlay = (SDL_Overlay *)SDL_malloc(sizeof *overlay);
+ if ( overlay == NULL ) {
+ SDL_OutOfMemory();
+ return(NULL);
+ }
+ SDL_memset(overlay, 0, (sizeof *overlay));
+
+ /* Fill in the basic members */
+ overlay->format = format;
+ overlay->w = width;
+ overlay->h = height;
+
+ /* Set up the YUV surface function structure */
+ overlay->hwfuncs = &gs_yuvfuncs;
+ overlay->hw_overlay = 1;
+
+ /* Create the pixel data */
+ hwdata = (struct private_yuvhwdata *)SDL_malloc(sizeof *hwdata);
+ overlay->hwdata = hwdata;
+ if ( hwdata == NULL ) {
+ SDL_FreeYUVOverlay(overlay);
+ SDL_OutOfMemory();
+ return(NULL);
+ }
+ hwdata->ipu_fd = -1;
+ hwdata->pixels = (Uint8 *)SDL_malloc(width*height*2);
+ if ( hwdata->pixels == NULL ) {
+ SDL_FreeYUVOverlay(overlay);
+ SDL_OutOfMemory();
+ return(NULL);
+ }
+ hwdata->macroblocks = (width/16) * (height/16);
+
+ /* Find the pitch and offset values for the overlay */
+ overlay->pitches = hwdata->pitches;
+ overlay->pixels = hwdata->planes;
+ switch (format) {
+ case SDL_YV12_OVERLAY:
+ case SDL_IYUV_OVERLAY:
+ overlay->pitches[0] = overlay->w;
+ overlay->pitches[1] = overlay->pitches[0] / 2;
+ overlay->pitches[2] = overlay->pitches[0] / 2;
+ overlay->pixels[0] = hwdata->pixels;
+ overlay->pixels[1] = overlay->pixels[0] +
+ overlay->pitches[0] * overlay->h;
+ overlay->pixels[2] = overlay->pixels[1] +
+ overlay->pitches[1] * overlay->h / 2;
+ overlay->planes = 3;
+ break;
+ default:
+ /* We should never get here (caught above) */
+ break;
+ }
+
+ /* Theoretically we could support several concurrent decode
+ streams queueing up on the same file descriptor, but for
+ simplicity we'll support only one. Opening the IPU more
+ than once will fail with EBUSY.
+ */
+ hwdata->ipu_fd = open("/dev/ps2ipu", O_RDWR);
+ if ( hwdata->ipu_fd < 0 ) {
+ SDL_FreeYUVOverlay(overlay);
+ SDL_SetError("Playstation 2 IPU busy");
+ return(NULL);
+ }
+
+ /* Allocate a DMA area for pixel conversion */
+ bpp = this->screen->format->BytesPerPixel;
+ map_offset = (mapped_len + (sysconf(_SC_PAGESIZE) - 1)) & ~(sysconf(_SC_PAGESIZE) - 1);
+ hwdata->dma_len = hwdata->macroblocks * (16 * 16 + 8 * 8 + 8 * 8) +
+ width * height * bpp +
+ hwdata->macroblocks * (16 * sizeof(long long)) +
+ 12 * sizeof(long long);
+ hwdata->dma_mem = mmap(0, hwdata->dma_len, PROT_READ|PROT_WRITE,
+ MAP_SHARED, memory_fd, map_offset);
+ if ( hwdata->dma_mem == MAP_FAILED ) {
+ hwdata->ipu_imem = (caddr_t)0;
+ SDL_FreeYUVOverlay(overlay);
+ SDL_SetError("Unable to map %d bytes for DMA", hwdata->dma_len);
+ return(NULL);
+ }
+ hwdata->ipu_imem = hwdata->dma_mem;
+ hwdata->ipu_omem = hwdata->ipu_imem +
+ hwdata->macroblocks * (16 * 16 + 8 * 8 + 8 * 8);
+ hwdata->dma_tags = hwdata->ipu_omem + width * height * bpp;
+
+ /* Allocate memory for the DMA packets */
+ hwdata->plist.num = hwdata->macroblocks * 4 + 1;
+ hwdata->plist.packet = (struct ps2_packet *)SDL_malloc(
+ hwdata->plist.num*sizeof(struct ps2_packet));
+ if ( ! hwdata->plist.packet ) {
+ SDL_FreeYUVOverlay(overlay);
+ SDL_OutOfMemory();
+ return(NULL);
+ }
+ pnum = 0;
+ packet = hwdata->plist.packet;
+
+ /* Set up the tags to send the image to the screen */
+ tags = (unsigned long long *)hwdata->dma_tags;
+ base = hwdata->ipu_omem;
+ fbp = screen_image.fbp;
+ fbw = screen_image.fbw;
+ psm = screen_image.psm;
+ y = screen_image.y + screen_image.h; /* Offscreen video memory */
+ for ( h=height/16; h; --h ) {
+ x = 0; /* Visible video memory */
+ for ( w=width/16; w; --w ) {
+ /* The head tag */
+ packet[pnum].ptr = &tags[0];
+ packet[pnum].len = 10 * sizeof(*tags);
+ ++pnum;
+ tags[0] = 4 | (1LL << 60); /* GIFtag */
+ tags[1] = 0x0e; /* A+D */
+ tags[2] = ((unsigned long long)fbp << 32) |
+ ((unsigned long long)fbw << 48) |
+ ((unsigned long long)psm << 56);
+ tags[3] = PS2_GS_BITBLTBUF;
+ tags[4] = ((unsigned long long)x << 32) |
+ ((unsigned long long)y << 48);
+ tags[5] = PS2_GS_TRXPOS;
+ tags[6] = (unsigned long long)16 |
+ ((unsigned long long)16 << 32);
+ tags[7] = PS2_GS_TRXREG;
+ tags[8] = 0;
+ tags[9] = PS2_GS_TRXDIR;
+ /* Now the actual image data */
+ packet[pnum].ptr = &tags[10];
+ packet[pnum].len = 2 * sizeof(*tags);
+ ++pnum;
+ tags[10] = ((16*16*bpp) >> 4) | (2LL << 58);
+ tags[11] = 0;
+ packet[pnum].ptr = (void *)base;
+ packet[pnum].len = 16 * 16 * bpp;
+ ++pnum;
+ packet[pnum].ptr = &tags[12];
+ packet[pnum].len = 2 * sizeof(*tags);
+ ++pnum;
+ tags[12] = (0 >> 4) | (1 << 15) | (2LL << 58);
+ tags[13] = 0;
+
+ tags += 16;
+ base += 16 * 16 * bpp;
+
+ x += 16;
+ }
+ y += 16;
+ }
+
+ /* Set up the texture memory area for the video */
+ tex_packet.ptr = tags;
+ tex_packet.len = 8 * sizeof(*tags);
+ tags[0] = 3 | (1LL << 60); /* GIFtag */
+ tags[1] = 0x0e; /* A+D */
+ tags[2] = ((screen_image.y + screen_image.h) * screen_image.w) / 64 +
+ ((unsigned long long)fbw << 14) +
+ ((unsigned long long)psm << 20) +
+ ((unsigned long long)power_of_2(width) << 26) +
+ ((unsigned long long)power_of_2(height) << 30) +
+ ((unsigned long long)1 << 34) +
+ ((unsigned long long)1 << 35);
+ tags[3] = PS2_GS_TEX0_1;
+ tags[4] = (1 << 5) + (1 << 6);
+ tags[5] = PS2_GS_TEX1_1;
+ tags[6] = 0;
+ tags[7] = PS2_GS_TEXFLUSH;
+ ioctl(console_fd, PS2IOC_SEND, &tex_packet);
+
+ /* Set up the tags for scaling the image */
+ packet[pnum].ptr = tags;
+ packet[pnum].len = 12 * sizeof(*tags);
+ ++pnum;
+ tags[0] = 5 | (1LL << 60); /* GIFtag */
+ tags[1] = 0x0e; /* A+D */
+ tags[2] = 6 + (1 << 4) + (1 << 8);
+ tags[3] = PS2_GS_PRIM;
+ tags[4] = ((unsigned long long)0 * 16) +
+ (((unsigned long long)0 * 16) << 16);
+ tags[5] = PS2_GS_UV;
+ tags[6] = 0; /* X1, Y1 */
+ tags[7] = PS2_GS_XYZ2;
+ hwdata->stretch_x1y1 = &tags[6];
+ tags[8] = ((unsigned long long)overlay->w * 16) +
+ (((unsigned long long)overlay->h * 16) << 16);
+ tags[9] = PS2_GS_UV;
+ tags[10] = 0; /* X2, Y2 */
+ tags[11] = PS2_GS_XYZ2;
+ hwdata->stretch_x2y2 = &tags[10];
+
+ /* We're all done.. */
+ return(overlay);
+}
+
+int GS_LockYUVOverlay(_THIS, SDL_Overlay *overlay)
+{
+ return(0);
+}
+
+void GS_UnlockYUVOverlay(_THIS, SDL_Overlay *overlay)
+{
+ return;
+}
+
+int GS_DisplayYUVOverlay(_THIS, SDL_Overlay *overlay, SDL_Rect *src, SDL_Rect *dst)
+{
+ struct private_yuvhwdata *hwdata;
+ __u32 cmd;
+ struct ps2_packet packet;
+ int h, w, i;
+ Uint32 *lum, *Cr, *Cb;
+ int lum_pitch;
+ int crb_pitch;
+ Uint32 *lum_src, *Cr_src, *Cb_src;
+ Uint32 *srcp, *dstp;
+ unsigned int x, y;
+ SDL_Surface *screen;
+
+ /* Find out where the various portions of the image are */
+ hwdata = overlay->hwdata;
+ switch (overlay->format) {
+ case SDL_YV12_OVERLAY:
+ lum = (Uint32 *)overlay->pixels[0];
+ Cr = (Uint32 *)overlay->pixels[1];
+ Cb = (Uint32 *)overlay->pixels[2];
+ break;
+ case SDL_IYUV_OVERLAY:
+ lum = (Uint32 *)overlay->pixels[0];
+ Cr = (Uint32 *)overlay->pixels[2];
+ Cb = (Uint32 *)overlay->pixels[1];
+ default:
+ SDL_SetError("Unsupported YUV format in blit (?)");
+ return(-1);
+ }
+ dstp = (Uint32 *)hwdata->ipu_imem;
+ lum_pitch = overlay->w/4;
+ crb_pitch = (overlay->w/2)/4;
+
+ /* Copy blocks of 16x16 pixels to the DMA area */
+ for ( h=overlay->h/16; h; --h ) {
+ lum_src = lum;
+ Cr_src = Cr;
+ Cb_src = Cb;
+ for ( w=overlay->w/16; w; --w ) {
+ srcp = lum_src;
+ for ( i=0; i<16; ++i ) {
+ dstp[0] = srcp[0];
+ dstp[1] = srcp[1];
+ dstp[2] = srcp[2];
+ dstp[3] = srcp[3];
+ srcp += lum_pitch;
+ dstp += 4;
+ }
+ srcp = Cb_src;
+ for ( i=0; i<8; ++i ) {
+ dstp[0] = srcp[0];
+ dstp[1] = srcp[1];
+ srcp += crb_pitch;
+ dstp += 2;
+ }
+ srcp = Cr_src;
+ for ( i=0; i<8; ++i ) {
+ dstp[0] = srcp[0];
+ dstp[1] = srcp[1];
+ srcp += crb_pitch;
+ dstp += 2;
+ }
+ lum_src += 16 / 4;
+ Cb_src += 8 / 4;
+ Cr_src += 8 / 4;
+ }
+ lum += lum_pitch * 16;
+ Cr += crb_pitch * 8;
+ Cb += crb_pitch * 8;
+ }
+
+ /* Send the macroblock data to the IPU */
+#ifdef DEBUG_YUV
+ fprintf(stderr, "Sending data to IPU..\n");
+#endif
+ packet.ptr = hwdata->ipu_imem;
+ packet.len = hwdata->macroblocks * (16 * 16 + 8 * 8 + 8 * 8);
+ ioctl(hwdata->ipu_fd, PS2IOC_SENDA, &packet);
+
+ /* Trigger the DMA to the IPU for conversion */
+#ifdef DEBUG_YUV
+ fprintf(stderr, "Trigging conversion command\n");
+#endif
+ cmd = (7 << 28) + hwdata->macroblocks;
+ if ( screen_image.psm == PS2_GS_PSMCT16 ) {
+ cmd += (1 << 27) + /* Output RGB 555 */
+ (1 << 26); /* Dither output */
+ }
+ ioctl(hwdata->ipu_fd, PS2IOC_SIPUCMD, &cmd);
+
+ /* Retrieve the converted image from the IPU */
+#ifdef DEBUG_YUV
+ fprintf(stderr, "Retrieving data from IPU..\n");
+#endif
+ packet.ptr = hwdata->ipu_omem;
+ packet.len = overlay->w * overlay->h *
+ this->screen->format->BytesPerPixel;
+ ioctl(hwdata->ipu_fd, PS2IOC_RECV, &packet);
+
+#ifdef DEBUG_YUV
+ fprintf(stderr, "Copying image to screen..\n");
+#endif
+ /* Wait for previous DMA to complete */
+ ioctl(console_fd, PS2IOC_SENDQCT, 1);
+
+ /* Send the current image to the screen and scale it */
+ screen = this->screen;
+ x = (unsigned int)dst->x;
+ y = (unsigned int)dst->y;
+ if ( screen->offset ) {
+ x += (screen->offset % screen->pitch) /
+ screen->format->BytesPerPixel;
+ y += (screen->offset / screen->pitch);
+ }
+ y += screen_image.y;
+ *hwdata->stretch_x1y1 = (x * 16) + ((y * 16) << 16);
+ x += (unsigned int)dst->w;
+ y += (unsigned int)dst->h;
+ *hwdata->stretch_x2y2 = (x * 16) + ((y * 16) << 16);
+ return ioctl(console_fd, PS2IOC_SENDL, &hwdata->plist);
+}
+
+void GS_FreeYUVOverlay(_THIS, SDL_Overlay *overlay)
+{
+ struct private_yuvhwdata *hwdata;
+
+ hwdata = overlay->hwdata;
+ if ( hwdata ) {
+ if ( hwdata->ipu_fd >= 0 ) {
+ close(hwdata->ipu_fd);
+ }
+ if ( hwdata->dma_mem ) {
+ munmap(hwdata->dma_mem, hwdata->dma_len);
+ }
+ if ( hwdata->plist.packet ) {
+ SDL_free(hwdata->plist.packet);
+ }
+ if ( hwdata->pixels ) {
+ SDL_free(hwdata->pixels);
+ }
+ SDL_free(hwdata);
+ }
+}
generated by cgit v1.1 at 2024-05-07 21:16:39 +0000