vmnc: K&R formatting cosmetics

Signed-off-by: Diego Biurrun <diego@biurrun.de>

1 files changed, 195 insertions, 157 deletions

diff --git a/libavcodec/vmnc.c b/libavcodec/vmnc.c
index 6ddfdaf4fc..2ecc563fa4 100644
--- a/libavcodec/vmnc.c
+++ b/libavcodec/vmnc.c
@@ -68,50 +68,63 @@ typedef struct VmncContext {
     int cur_w, cur_h;
     int cur_x, cur_y;
     int cur_hx, cur_hy;
-    uint8_t* curbits, *curmask;
-    uint8_t* screendta;
+    uint8_t *curbits, *curmask;
+    uint8_t *screendta;
 } VmncContext;
 
 /* read pixel value from stream */
-static av_always_inline int vmnc_get_pixel(const uint8_t* buf, int bpp, int be) {
-    switch(bpp * 2 + be) {
+static av_always_inline int vmnc_get_pixel(const uint8_t *buf, int bpp, int be)
+{
+    switch (bpp * 2 + be) {
     case 2:
-    case 3: return *buf;
-    case 4: return AV_RL16(buf);
-    case 5: return AV_RB16(buf);
-    case 8: return AV_RL32(buf);
-    case 9: return AV_RB32(buf);
-    default: return 0;
+    case 3:
+        return *buf;
+    case 4:
+        return AV_RL16(buf);
+    case 5:
+        return AV_RB16(buf);
+    case 8:
+        return AV_RL32(buf);
+    case 9:
+        return AV_RB32(buf);
+    default:
+        return 0;
     }
 }
 
 static void load_cursor(VmncContext *c, const uint8_t *src)
 {
     int i, j, p;
-    const int bpp = c->bpp2;
-    uint8_t  *dst8  = c->curbits;
-    uint16_t *dst16 = (uint16_t*)c->curbits;
-    uint32_t *dst32 = (uint32_t*)c->curbits;
+    const int bpp   = c->bpp2;
+    uint8_t *dst8   =             c->curbits;
+    uint16_t *dst16 = (uint16_t *)c->curbits;
+    uint32_t *dst32 = (uint32_t *)c->curbits;
 
-    for(j = 0; j < c->cur_h; j++) {
-        for(i = 0; i < c->cur_w; i++) {
+    for (j = 0; j < c->cur_h; j++) {
+        for (i = 0; i < c->cur_w; i++) {
             p = vmnc_get_pixel(src, bpp, c->bigendian);
             src += bpp;
-            if(bpp == 1) *dst8++ = p;
-            if(bpp == 2) *dst16++ = p;
-            if(bpp == 4) *dst32++ = p;
+            if (bpp == 1)
+                *dst8++ = p;
+            if (bpp == 2)
+                *dst16++ = p;
+            if (bpp == 4)
+                *dst32++ = p;
         }
     }
-    dst8 = c->curmask;
+    dst8  =            c->curmask;
     dst16 = (uint16_t*)c->curmask;
     dst32 = (uint32_t*)c->curmask;
-    for(j = 0; j < c->cur_h; j++) {
-        for(i = 0; i < c->cur_w; i++) {
+    for (j = 0; j < c->cur_h; j++) {
+        for (i = 0; i < c->cur_w; i++) {
             p = vmnc_get_pixel(src, bpp, c->bigendian);
             src += bpp;
-            if(bpp == 1) *dst8++ = p;
-            if(bpp == 2) *dst16++ = p;
-            if(bpp == 4) *dst32++ = p;
+            if (bpp == 1)
+                *dst8++ = p;
+            if (bpp == 2)
+                *dst16++ = p;
+            if (bpp == 4)
+                *dst32++ = p;
         }
     }
 }
@@ -121,96 +134,101 @@ static void put_cursor(uint8_t *dst, int stride, VmncContext *c, int dx, int dy)
     int i, j;
     int w, h, x, y;
     w = c->cur_w;
-    if(c->width < c->cur_x + c->cur_w) w = c->width - c->cur_x;
+    if (c->width < c->cur_x + c->cur_w)
+        w = c->width - c->cur_x;
     h = c->cur_h;
-    if(c->height < c->cur_y + c->cur_h) h = c->height - c->cur_y;
+    if (c->height < c->cur_y + c->cur_h)
+        h = c->height - c->cur_y;
     x = c->cur_x;
     y = c->cur_y;
-    if(x < 0) {
+    if (x < 0) {
         w += x;
-        x = 0;
+        x  = 0;
     }
-    if(y < 0) {
+    if (y < 0) {
         h += y;
-        y = 0;
+        y  = 0;
     }
 
-    if((w < 1) || (h < 1)) return;
+    if ((w < 1) || (h < 1))
+        return;
     dst += x * c->bpp2 + y * stride;
 
-    if(c->bpp2 == 1) {
-        uint8_t* cd = c->curbits, *msk = c->curmask;
-        for(j = 0; j < h; j++) {
-            for(i = 0; i < w; i++)
+    if (c->bpp2 == 1) {
+        uint8_t *cd = c->curbits, *msk = c->curmask;
+        for (j = 0; j < h; j++) {
+            for (i = 0; i < w; i++)
                 dst[i] = (dst[i] & cd[i]) ^ msk[i];
             msk += c->cur_w;
-            cd += c->cur_w;
+            cd  += c->cur_w;
             dst += stride;
         }
-    } else if(c->bpp2 == 2) {
-        uint16_t* cd = (uint16_t*)c->curbits, *msk = (uint16_t*)c->curmask;
-        uint16_t* dst2;
-        for(j = 0; j < h; j++) {
+    } else if (c->bpp2 == 2) {
+        uint16_t *cd = (uint16_t*)c->curbits, *msk = (uint16_t*)c->curmask;
+        uint16_t *dst2;
+        for (j = 0; j < h; j++) {
             dst2 = (uint16_t*)dst;
-            for(i = 0; i < w; i++)
+            for (i = 0; i < w; i++)
                 dst2[i] = (dst2[i] & cd[i]) ^ msk[i];
             msk += c->cur_w;
-            cd += c->cur_w;
+            cd  += c->cur_w;
             dst += stride;
         }
-    } else if(c->bpp2 == 4) {
-        uint32_t* cd = (uint32_t*)c->curbits, *msk = (uint32_t*)c->curmask;
-        uint32_t* dst2;
-        for(j = 0; j < h; j++) {
+    } else if (c->bpp2 == 4) {
+        uint32_t *cd = (uint32_t*)c->curbits, *msk = (uint32_t*)c->curmask;
+        uint32_t *dst2;
+        for (j = 0; j < h; j++) {
             dst2 = (uint32_t*)dst;
-            for(i = 0; i < w; i++)
+            for (i = 0; i < w; i++)
                 dst2[i] = (dst2[i] & cd[i]) ^ msk[i];
             msk += c->cur_w;
-            cd += c->cur_w;
+            cd  += c->cur_w;
             dst += stride;
         }
     }
 }
 
 /* fill rectangle with given color */
-static av_always_inline void paint_rect(uint8_t *dst, int dx, int dy, int w, int h, int color, int bpp, int stride)
+static av_always_inline void paint_rect(uint8_t *dst, int dx, int dy,
+                                        int w, int h, int color,
+                                        int bpp, int stride)
 {
     int i, j;
     dst += dx * bpp + dy * stride;
-    if(bpp == 1){
-        for(j = 0; j < h; j++) {
+    if (bpp == 1) {
+        for (j = 0; j < h; j++) {
             memset(dst, color, w);
             dst += stride;
         }
-    }else if(bpp == 2){
-        uint16_t* dst2;
-        for(j = 0; j < h; j++) {
+    } else if (bpp == 2) {
+        uint16_t *dst2;
+        for (j = 0; j < h; j++) {
             dst2 = (uint16_t*)dst;
-            for(i = 0; i < w; i++) {
+            for (i = 0; i < w; i++)
                 *dst2++ = color;
-            }
             dst += stride;
         }
-    }else if(bpp == 4){
-        uint32_t* dst2;
-        for(j = 0; j < h; j++) {
+    } else if (bpp == 4) {
+        uint32_t *dst2;
+        for (j = 0; j < h; j++) {
             dst2 = (uint32_t*)dst;
-            for(i = 0; i < w; i++) {
+            for (i = 0; i < w; i++)
                 dst2[i] = color;
-            }
             dst += stride;
         }
     }
 }
 
-static av_always_inline void paint_raw(uint8_t *dst, int w, int h, const uint8_t* src, int bpp, int be, int stride)
+static av_always_inline void paint_raw(uint8_t *dst, int w, int h,
+                                       const uint8_t *src, int bpp,
+                                       int be, int stride)
 {
     int i, j, p;
-    for(j = 0; j < h; j++) {
-        for(i = 0; i < w; i++) {
+    for (j = 0; j < h; j++) {
+        for (i = 0; i < w; i++) {
             p = vmnc_get_pixel(src, bpp, be);
             src += bpp;
-            switch(bpp){
+            switch (bpp) {
             case 1:
                 dst[i] = p;
                 break;
@@ -226,58 +244,65 @@ static av_always_inline void paint_raw(uint8_t *dst, int w, int h, const uint8_t
     }
 }
 
-static int decode_hextile(VmncContext *c, uint8_t* dst, const uint8_t* src, int ssize, int w, int h, int stride)
+static int decode_hextile(VmncContext *c, uint8_t *dst, const uint8_t *src,
+                          int ssize, int w, int h, int stride)
 {
     int i, j, k;
     int bg = 0, fg = 0, rects, color, flags, xy, wh;
     const int bpp = c->bpp2;
     uint8_t *dst2;
     int bw = 16, bh = 16;
-    const uint8_t *ssrc=src;
+    const uint8_t *ssrc = src;
 
-    for(j = 0; j < h; j += 16) {
+    for (j = 0; j < h; j += 16) {
         dst2 = dst;
-        bw = 16;
-        if(j + 16 > h) bh = h - j;
-        for(i = 0; i < w; i += 16, dst2 += 16 * bpp) {
-            if(src - ssrc >= ssize) {
+        bw   = 16;
+        if (j + 16 > h)
+            bh = h - j;
+        for (i = 0; i < w; i += 16, dst2 += 16 * bpp) {
+            if (src - ssrc >= ssize) {
                 av_log(c->avctx, AV_LOG_ERROR, "Premature end of data!\n");
                 return -1;
             }
-            if(i + 16 > w) bw = w - i;
+            if (i + 16 > w)
+                bw = w - i;
             flags = *src++;
-            if(flags & HT_RAW) {
-                if(src - ssrc > ssize - bw * bh * bpp) {
+            if (flags & HT_RAW) {
+                if (src - ssrc > ssize - bw * bh * bpp) {
                     av_log(c->avctx, AV_LOG_ERROR, "Premature end of data!\n");
                     return -1;
                 }
                 paint_raw(dst2, bw, bh, src, bpp, c->bigendian, stride);
                 src += bw * bh * bpp;
             } else {
-                if(flags & HT_BKG) {
-                    bg = vmnc_get_pixel(src, bpp, c->bigendian); src += bpp;
+                if (flags & HT_BKG) {
+                    bg = vmnc_get_pixel(src, bpp, c->bigendian);
+                    src += bpp;
                 }
-                if(flags & HT_FG) {
-                    fg = vmnc_get_pixel(src, bpp, c->bigendian); src += bpp;
+                if (flags & HT_FG) {
+                    fg = vmnc_get_pixel(src, bpp, c->bigendian);
+                    src += bpp;
                 }
                 rects = 0;
-                if(flags & HT_SUB)
+                if (flags & HT_SUB)
                     rects = *src++;
                 color = !!(flags & HT_CLR);
 
                 paint_rect(dst2, 0, 0, bw, bh, bg, bpp, stride);
 
-                if(src - ssrc > ssize - rects * (color * bpp + 2)) {
+                if (src - ssrc > ssize - rects * (color * bpp + 2)) {
                     av_log(c->avctx, AV_LOG_ERROR, "Premature end of data!\n");
                     return -1;
                 }
-                for(k = 0; k < rects; k++) {
-                    if(color) {
-                        fg = vmnc_get_pixel(src, bpp, c->bigendian); src += bpp;
+                for (k = 0; k < rects; k++) {
+                    if (color) {
+                        fg = vmnc_get_pixel(src, bpp, c->bigendian);
+                        src += bpp;
                     }
                     xy = *src++;
                     wh = *src++;
-                    paint_rect(dst2, xy >> 4, xy & 0xF, (wh>>4)+1, (wh & 0xF)+1, fg, bpp, stride);
+                    paint_rect(dst2, xy >> 4, xy & 0xF, (wh >> 4) + 1,
+                               (wh & 0xF) + 1, fg, bpp, stride);
                 }
             }
         }
@@ -290,7 +315,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
-    int buf_size = avpkt->size;
+    int buf_size       = avpkt->size;
     VmncContext * const c = avctx->priv_data;
     uint8_t *outptr;
     const uint8_t *src = buf;
@@ -304,58 +329,72 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
     c->pic.key_frame = 0;
     c->pic.pict_type = AV_PICTURE_TYPE_P;
 
-    //restore screen after cursor
-    if(c->screendta) {
+    // restore screen after cursor
+    if (c->screendta) {
         int i;
         w = c->cur_w;
-        if(c->width < c->cur_x + w) w = c->width - c->cur_x;
+        if (c->width < c->cur_x + w)
+            w = c->width - c->cur_x;
         h = c->cur_h;
-        if(c->height < c->cur_y + h) h = c->height - c->cur_y;
+        if (c->height < c->cur_y + h)
+            h = c->height - c->cur_y;
         dx = c->cur_x;
-        if(dx < 0) {
+        if (dx < 0) {
             w += dx;
             dx = 0;
         }
         dy = c->cur_y;
-        if(dy < 0) {
+        if (dy < 0) {
             h += dy;
             dy = 0;
         }
-        if((w > 0) && (h > 0)) {
+        if ((w > 0) && (h > 0)) {
             outptr = c->pic.data[0] + dx * c->bpp2 + dy * c->pic.linesize[0];
-            for(i = 0; i < h; i++) {
-                memcpy(outptr, c->screendta + i * c->cur_w * c->bpp2, w * c->bpp2);
+            for (i = 0; i < h; i++) {
+                memcpy(outptr, c->screendta + i * c->cur_w * c->bpp2,
+                       w * c->bpp2);
                 outptr += c->pic.linesize[0];
             }
         }
     }
     src += 2;
-    chunks = AV_RB16(src); src += 2;
-    while(chunks--) {
-        dx = AV_RB16(src); src += 2;
-        dy = AV_RB16(src); src += 2;
-        w  = AV_RB16(src); src += 2;
-        h  = AV_RB16(src); src += 2;
-        enc = AV_RB32(src); src += 4;
+    chunks = AV_RB16(src);
+    src += 2;
+    while (chunks--) {
+        dx  = AV_RB16(src);
+        src += 2;
+        dy  = AV_RB16(src);
+        src += 2;
+        w   = AV_RB16(src);
+        src += 2;
+        h   = AV_RB16(src);
+        src += 2;
+        enc = AV_RB32(src);
+        src += 4;
         outptr = c->pic.data[0] + dx * c->bpp2 + dy * c->pic.linesize[0];
         size_left = buf_size - (src - buf);
-        switch(enc) {
+        switch (enc) {
         case MAGIC_WMVd: // cursor
-            if(size_left < 2 + w * h * c->bpp2 * 2) {
-                av_log(avctx, AV_LOG_ERROR, "Premature end of data! (need %i got %i)\n", 2 + w * h * c->bpp2 * 2, size_left);
+            if (size_left < 2 + w * h * c->bpp2 * 2) {
+                av_log(avctx, AV_LOG_ERROR,
+                       "Premature end of data! (need %i got %i)\n",
+                       2 + w * h * c->bpp2 * 2, size_left);
                 return -1;
             }
             src += 2;
-            c->cur_w = w;
-            c->cur_h = h;
+            c->cur_w  = w;
+            c->cur_h  = h;
             c->cur_hx = dx;
             c->cur_hy = dy;
-            if((c->cur_hx > c->cur_w) || (c->cur_hy > c->cur_h)) {
-                av_log(avctx, AV_LOG_ERROR, "Cursor hot spot is not in image: %ix%i of %ix%i cursor size\n", c->cur_hx, c->cur_hy, c->cur_w, c->cur_h);
+            if ((c->cur_hx > c->cur_w) || (c->cur_hy > c->cur_h)) {
+                av_log(avctx, AV_LOG_ERROR,
+                       "Cursor hot spot is not in image: "
+                       "%ix%i of %ix%i cursor size\n",
+                       c->cur_hx, c->cur_hy, c->cur_w, c->cur_h);
                 c->cur_hx = c->cur_hy = 0;
             }
-            c->curbits = av_realloc(c->curbits, c->cur_w * c->cur_h * c->bpp2);
-            c->curmask = av_realloc(c->curmask, c->cur_w * c->cur_h * c->bpp2);
+            c->curbits   = av_realloc(c->curbits,   c->cur_w * c->cur_h * c->bpp2);
+            c->curmask   = av_realloc(c->curmask,   c->cur_w * c->cur_h * c->bpp2);
             c->screendta = av_realloc(c->screendta, c->cur_w * c->cur_h * c->bpp2);
             load_cursor(c, src);
             src += w * h * c->bpp2 * 2;
@@ -377,40 +416,52 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
             c->pic.key_frame = 1;
             c->pic.pict_type = AV_PICTURE_TYPE_I;
             depth = *src++;
-            if(depth != c->bpp) {
-                av_log(avctx, AV_LOG_INFO, "Depth mismatch. Container %i bpp, Frame data: %i bpp\n", c->bpp, depth);
+            if (depth != c->bpp) {
+                av_log(avctx, AV_LOG_INFO,
+                       "Depth mismatch. Container %i bpp, "
+                       "Frame data: %i bpp\n",
+                       c->bpp, depth);
             }
             src++;
             c->bigendian = *src++;
-            if(c->bigendian & (~1)) {
-                av_log(avctx, AV_LOG_INFO, "Invalid header: bigendian flag = %i\n", c->bigendian);
+            if (c->bigendian & (~1)) {
+                av_log(avctx, AV_LOG_INFO,
+                       "Invalid header: bigendian flag = %i\n", c->bigendian);
                 return -1;
             }
-            //skip the rest of pixel format data
+            // skip the rest of pixel format data
             src += 13;
             break;
         case MAGIC_WMVj: // unknown
             src += 2;
             break;
         case 0x00000000: // raw rectangle data
-            if((dx + w > c->width) || (dy + h > c->height)) {
-                av_log(avctx, AV_LOG_ERROR, "Incorrect frame size: %ix%i+%ix%i of %ix%i\n", w, h, dx, dy, c->width, c->height);
+            if ((dx + w > c->width) || (dy + h > c->height)) {
+                av_log(avctx, AV_LOG_ERROR,
+                       "Incorrect frame size: %ix%i+%ix%i of %ix%i\n",
+                       w, h, dx, dy, c->width, c->height);
                 return -1;
             }
-            if(size_left < w * h * c->bpp2) {
-                av_log(avctx, AV_LOG_ERROR, "Premature end of data! (need %i got %i)\n", w * h * c->bpp2, size_left);
+            if (size_left < w * h * c->bpp2) {
+                av_log(avctx, AV_LOG_ERROR,
+                       "Premature end of data! (need %i got %i)\n",
+                       w * h * c->bpp2, size_left);
                 return -1;
             }
-            paint_raw(outptr, w, h, src, c->bpp2, c->bigendian, c->pic.linesize[0]);
+            paint_raw(outptr, w, h, src, c->bpp2, c->bigendian,
+                      c->pic.linesize[0]);
             src += w * h * c->bpp2;
             break;
         case 0x00000005: // HexTile encoded rectangle
-            if((dx + w > c->width) || (dy + h > c->height)) {
-                av_log(avctx, AV_LOG_ERROR, "Incorrect frame size: %ix%i+%ix%i of %ix%i\n", w, h, dx, dy, c->width, c->height);
+            if ((dx + w > c->width) || (dy + h > c->height)) {
+                av_log(avctx, AV_LOG_ERROR,
+                       "Incorrect frame size: %ix%i+%ix%i of %ix%i\n",
+                       w, h, dx, dy, c->width, c->height);
                 return -1;
             }
-            res = decode_hextile(c, outptr, src, size_left, w, h, c->pic.linesize[0]);
-            if(res < 0)
+            res = decode_hextile(c, outptr, src, size_left, w, h,
+                                 c->pic.linesize[0]);
+            if (res < 0)
                 return -1;
             src += res;
             break;
@@ -419,34 +470,37 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
             chunks = 0; // leave chunks decoding loop
         }
     }
-    if(c->screendta){
+    if (c->screendta) {
         int i;
-        //save screen data before painting cursor
+        // save screen data before painting cursor
         w = c->cur_w;
-        if(c->width < c->cur_x + w) w = c->width - c->cur_x;
+        if (c->width < c->cur_x + w)
+            w = c->width - c->cur_x;
         h = c->cur_h;
-        if(c->height < c->cur_y + h) h = c->height - c->cur_y;
+        if (c->height < c->cur_y + h)
+            h = c->height - c->cur_y;
         dx = c->cur_x;
-        if(dx < 0) {
+        if (dx < 0) {
             w += dx;
             dx = 0;
         }
         dy = c->cur_y;
-        if(dy < 0) {
+        if (dy < 0) {
             h += dy;
             dy = 0;
         }
-        if((w > 0) && (h > 0)) {
+        if ((w > 0) && (h > 0)) {
             outptr = c->pic.data[0] + dx * c->bpp2 + dy * c->pic.linesize[0];
-            for(i = 0; i < h; i++) {
-                memcpy(c->screendta + i * c->cur_w * c->bpp2, outptr, w * c->bpp2);
+            for (i = 0; i < h; i++) {
+                memcpy(c->screendta + i * c->cur_w * c->bpp2, outptr,
+                       w * c->bpp2);
                 outptr += c->pic.linesize[0];
             }
             outptr = c->pic.data[0];
             put_cursor(outptr, c->pic.linesize[0], c, c->cur_x, c->cur_y);
         }
     }
-    *got_frame      = 1;
+    *got_frame = 1;
     if ((ret = av_frame_ref(data, &c->pic)) < 0)
         return ret;
 
@@ -454,26 +508,17 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
     return buf_size;
 }
 
-
-
-/*
- *
- * Init VMnc decoder
- *
- */
 static av_cold int decode_init(AVCodecContext *avctx)
 {
     VmncContext * const c = avctx->priv_data;
 
-    c->avctx = avctx;
-
-    c->width = avctx->width;
+    c->avctx  = avctx;
+    c->width  = avctx->width;
     c->height = avctx->height;
+    c->bpp    = avctx->bits_per_coded_sample;
+    c->bpp2   = c->bpp / 8;
 
-    c->bpp = avctx->bits_per_coded_sample;
-    c->bpp2 = c->bpp/8;
-
-    switch(c->bpp){
+    switch (c->bpp) {
     case 8:
         avctx->pix_fmt = AV_PIX_FMT_PAL8;
         break;
@@ -493,13 +538,6 @@ static av_cold int decode_init(AVCodecContext *avctx)
     return 0;
 }
 
-
-
-/*
- *
- * Uninit VMnc decoder
- *
- */
 static av_cold int decode_end(AVCodecContext *avctx)
 {
     VmncContext * const c = avctx->priv_data;