mirror of
https://github.com/FFmpeg/FFmpeg.git
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vmnc: K&R formatting cosmetics
Signed-off-by: Diego Biurrun <diego@biurrun.de>
This commit is contained in:
Luca Barbato
parent
ad7d7d4f6a
commit
a66aa0daf2
@ -68,20 +68,27 @@ typedef struct VmncContext {
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int cur_w, cur_h;
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int cur_x, cur_y;
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int cur_hx, cur_hy;
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uint8_t* curbits, *curmask;
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uint8_t* screendta;
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uint8_t *curbits, *curmask;
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uint8_t *screendta;
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} VmncContext;
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/* read pixel value from stream */
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static av_always_inline int vmnc_get_pixel(const uint8_t* buf, int bpp, int be) {
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switch(bpp * 2 + be) {
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static av_always_inline int vmnc_get_pixel(const uint8_t *buf, int bpp, int be)
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{
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switch (bpp * 2 + be) {
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case 2:
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case 3: return *buf;
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case 4: return AV_RL16(buf);
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case 5: return AV_RB16(buf);
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case 8: return AV_RL32(buf);
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case 9: return AV_RB32(buf);
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default: return 0;
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case 3:
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return *buf;
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case 4:
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return AV_RL16(buf);
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case 5:
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return AV_RB16(buf);
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case 8:
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return AV_RL32(buf);
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case 9:
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return AV_RB32(buf);
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default:
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return 0;
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}
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}
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@ -90,28 +97,34 @@ static void load_cursor(VmncContext *c, const uint8_t *src)
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int i, j, p;
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const int bpp = c->bpp2;
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uint8_t *dst8 = c->curbits;
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uint16_t *dst16 = (uint16_t*)c->curbits;
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uint32_t *dst32 = (uint32_t*)c->curbits;
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uint16_t *dst16 = (uint16_t *)c->curbits;
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uint32_t *dst32 = (uint32_t *)c->curbits;
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for(j = 0; j < c->cur_h; j++) {
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for(i = 0; i < c->cur_w; i++) {
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for (j = 0; j < c->cur_h; j++) {
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for (i = 0; i < c->cur_w; i++) {
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p = vmnc_get_pixel(src, bpp, c->bigendian);
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src += bpp;
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if(bpp == 1) *dst8++ = p;
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if(bpp == 2) *dst16++ = p;
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if(bpp == 4) *dst32++ = p;
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if (bpp == 1)
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*dst8++ = p;
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if (bpp == 2)
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*dst16++ = p;
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if (bpp == 4)
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*dst32++ = p;
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}
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}
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dst8 = c->curmask;
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dst16 = (uint16_t*)c->curmask;
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dst32 = (uint32_t*)c->curmask;
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for(j = 0; j < c->cur_h; j++) {
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for(i = 0; i < c->cur_w; i++) {
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for (j = 0; j < c->cur_h; j++) {
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for (i = 0; i < c->cur_w; i++) {
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p = vmnc_get_pixel(src, bpp, c->bigendian);
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src += bpp;
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if(bpp == 1) *dst8++ = p;
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if(bpp == 2) *dst16++ = p;
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if(bpp == 4) *dst32++ = p;
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if (bpp == 1)
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*dst8++ = p;
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if (bpp == 2)
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*dst16++ = p;
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if (bpp == 4)
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*dst32++ = p;
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}
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}
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}
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@ -121,49 +134,52 @@ static void put_cursor(uint8_t *dst, int stride, VmncContext *c, int dx, int dy)
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int i, j;
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int w, h, x, y;
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w = c->cur_w;
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if(c->width < c->cur_x + c->cur_w) w = c->width - c->cur_x;
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if (c->width < c->cur_x + c->cur_w)
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w = c->width - c->cur_x;
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h = c->cur_h;
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if(c->height < c->cur_y + c->cur_h) h = c->height - c->cur_y;
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if (c->height < c->cur_y + c->cur_h)
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h = c->height - c->cur_y;
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x = c->cur_x;
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y = c->cur_y;
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if(x < 0) {
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if (x < 0) {
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w += x;
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x = 0;
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}
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if(y < 0) {
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if (y < 0) {
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h += y;
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y = 0;
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}
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if((w < 1) || (h < 1)) return;
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if ((w < 1) || (h < 1))
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return;
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dst += x * c->bpp2 + y * stride;
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if(c->bpp2 == 1) {
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uint8_t* cd = c->curbits, *msk = c->curmask;
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for(j = 0; j < h; j++) {
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for(i = 0; i < w; i++)
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if (c->bpp2 == 1) {
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uint8_t *cd = c->curbits, *msk = c->curmask;
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for (j = 0; j < h; j++) {
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for (i = 0; i < w; i++)
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dst[i] = (dst[i] & cd[i]) ^ msk[i];
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msk += c->cur_w;
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cd += c->cur_w;
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dst += stride;
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}
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} else if(c->bpp2 == 2) {
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uint16_t* cd = (uint16_t*)c->curbits, *msk = (uint16_t*)c->curmask;
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uint16_t* dst2;
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for(j = 0; j < h; j++) {
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} else if (c->bpp2 == 2) {
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uint16_t *cd = (uint16_t*)c->curbits, *msk = (uint16_t*)c->curmask;
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uint16_t *dst2;
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for (j = 0; j < h; j++) {
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dst2 = (uint16_t*)dst;
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for(i = 0; i < w; i++)
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for (i = 0; i < w; i++)
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dst2[i] = (dst2[i] & cd[i]) ^ msk[i];
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msk += c->cur_w;
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cd += c->cur_w;
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dst += stride;
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}
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} else if(c->bpp2 == 4) {
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uint32_t* cd = (uint32_t*)c->curbits, *msk = (uint32_t*)c->curmask;
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uint32_t* dst2;
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for(j = 0; j < h; j++) {
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} else if (c->bpp2 == 4) {
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uint32_t *cd = (uint32_t*)c->curbits, *msk = (uint32_t*)c->curmask;
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uint32_t *dst2;
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for (j = 0; j < h; j++) {
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dst2 = (uint32_t*)dst;
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for(i = 0; i < w; i++)
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for (i = 0; i < w; i++)
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dst2[i] = (dst2[i] & cd[i]) ^ msk[i];
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msk += c->cur_w;
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cd += c->cur_w;
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@ -173,44 +189,46 @@ static void put_cursor(uint8_t *dst, int stride, VmncContext *c, int dx, int dy)
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}
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/* fill rectangle with given color */
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static av_always_inline void paint_rect(uint8_t *dst, int dx, int dy, int w, int h, int color, int bpp, int stride)
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static av_always_inline void paint_rect(uint8_t *dst, int dx, int dy,
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int w, int h, int color,
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int bpp, int stride)
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{
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int i, j;
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dst += dx * bpp + dy * stride;
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if(bpp == 1){
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for(j = 0; j < h; j++) {
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if (bpp == 1) {
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for (j = 0; j < h; j++) {
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memset(dst, color, w);
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dst += stride;
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}
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}else if(bpp == 2){
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uint16_t* dst2;
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for(j = 0; j < h; j++) {
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} else if (bpp == 2) {
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uint16_t *dst2;
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for (j = 0; j < h; j++) {
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dst2 = (uint16_t*)dst;
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for(i = 0; i < w; i++) {
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for (i = 0; i < w; i++)
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*dst2++ = color;
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}
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dst += stride;
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}
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}else if(bpp == 4){
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uint32_t* dst2;
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for(j = 0; j < h; j++) {
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} else if (bpp == 4) {
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uint32_t *dst2;
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for (j = 0; j < h; j++) {
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dst2 = (uint32_t*)dst;
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for(i = 0; i < w; i++) {
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for (i = 0; i < w; i++)
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dst2[i] = color;
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}
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dst += stride;
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}
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}
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}
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static av_always_inline void paint_raw(uint8_t *dst, int w, int h, const uint8_t* src, int bpp, int be, int stride)
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static av_always_inline void paint_raw(uint8_t *dst, int w, int h,
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const uint8_t *src, int bpp,
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int be, int stride)
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{
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int i, j, p;
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for(j = 0; j < h; j++) {
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for(i = 0; i < w; i++) {
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for (j = 0; j < h; j++) {
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for (i = 0; i < w; i++) {
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p = vmnc_get_pixel(src, bpp, be);
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src += bpp;
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switch(bpp){
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switch (bpp) {
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case 1:
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dst[i] = p;
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break;
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@ -226,58 +244,65 @@ static av_always_inline void paint_raw(uint8_t *dst, int w, int h, const uint8_t
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}
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}
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static int decode_hextile(VmncContext *c, uint8_t* dst, const uint8_t* src, int ssize, int w, int h, int stride)
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static int decode_hextile(VmncContext *c, uint8_t *dst, const uint8_t *src,
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int ssize, int w, int h, int stride)
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{
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int i, j, k;
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int bg = 0, fg = 0, rects, color, flags, xy, wh;
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const int bpp = c->bpp2;
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uint8_t *dst2;
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int bw = 16, bh = 16;
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const uint8_t *ssrc=src;
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const uint8_t *ssrc = src;
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for(j = 0; j < h; j += 16) {
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for (j = 0; j < h; j += 16) {
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dst2 = dst;
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bw = 16;
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if(j + 16 > h) bh = h - j;
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for(i = 0; i < w; i += 16, dst2 += 16 * bpp) {
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if(src - ssrc >= ssize) {
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if (j + 16 > h)
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bh = h - j;
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for (i = 0; i < w; i += 16, dst2 += 16 * bpp) {
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if (src - ssrc >= ssize) {
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av_log(c->avctx, AV_LOG_ERROR, "Premature end of data!\n");
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return -1;
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}
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if(i + 16 > w) bw = w - i;
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if (i + 16 > w)
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bw = w - i;
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flags = *src++;
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if(flags & HT_RAW) {
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if(src - ssrc > ssize - bw * bh * bpp) {
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if (flags & HT_RAW) {
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if (src - ssrc > ssize - bw * bh * bpp) {
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av_log(c->avctx, AV_LOG_ERROR, "Premature end of data!\n");
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return -1;
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}
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paint_raw(dst2, bw, bh, src, bpp, c->bigendian, stride);
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src += bw * bh * bpp;
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} else {
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if(flags & HT_BKG) {
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bg = vmnc_get_pixel(src, bpp, c->bigendian); src += bpp;
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if (flags & HT_BKG) {
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bg = vmnc_get_pixel(src, bpp, c->bigendian);
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src += bpp;
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}
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if(flags & HT_FG) {
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fg = vmnc_get_pixel(src, bpp, c->bigendian); src += bpp;
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if (flags & HT_FG) {
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fg = vmnc_get_pixel(src, bpp, c->bigendian);
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src += bpp;
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}
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rects = 0;
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if(flags & HT_SUB)
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if (flags & HT_SUB)
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rects = *src++;
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color = !!(flags & HT_CLR);
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paint_rect(dst2, 0, 0, bw, bh, bg, bpp, stride);
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if(src - ssrc > ssize - rects * (color * bpp + 2)) {
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if (src - ssrc > ssize - rects * (color * bpp + 2)) {
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av_log(c->avctx, AV_LOG_ERROR, "Premature end of data!\n");
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return -1;
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}
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for(k = 0; k < rects; k++) {
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if(color) {
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fg = vmnc_get_pixel(src, bpp, c->bigendian); src += bpp;
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for (k = 0; k < rects; k++) {
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if (color) {
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fg = vmnc_get_pixel(src, bpp, c->bigendian);
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src += bpp;
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}
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xy = *src++;
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wh = *src++;
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paint_rect(dst2, xy >> 4, xy & 0xF, (wh>>4)+1, (wh & 0xF)+1, fg, bpp, stride);
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paint_rect(dst2, xy >> 4, xy & 0xF, (wh >> 4) + 1,
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(wh & 0xF) + 1, fg, bpp, stride);
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}
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}
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}
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@ -304,45 +329,56 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
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c->pic.key_frame = 0;
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c->pic.pict_type = AV_PICTURE_TYPE_P;
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//restore screen after cursor
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if(c->screendta) {
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// restore screen after cursor
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if (c->screendta) {
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int i;
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w = c->cur_w;
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if(c->width < c->cur_x + w) w = c->width - c->cur_x;
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if (c->width < c->cur_x + w)
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w = c->width - c->cur_x;
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h = c->cur_h;
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if(c->height < c->cur_y + h) h = c->height - c->cur_y;
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if (c->height < c->cur_y + h)
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h = c->height - c->cur_y;
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dx = c->cur_x;
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if(dx < 0) {
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if (dx < 0) {
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w += dx;
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dx = 0;
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}
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dy = c->cur_y;
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if(dy < 0) {
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if (dy < 0) {
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h += dy;
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dy = 0;
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}
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if((w > 0) && (h > 0)) {
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if ((w > 0) && (h > 0)) {
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outptr = c->pic.data[0] + dx * c->bpp2 + dy * c->pic.linesize[0];
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for(i = 0; i < h; i++) {
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memcpy(outptr, c->screendta + i * c->cur_w * c->bpp2, w * c->bpp2);
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for (i = 0; i < h; i++) {
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memcpy(outptr, c->screendta + i * c->cur_w * c->bpp2,
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w * c->bpp2);
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outptr += c->pic.linesize[0];
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}
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}
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}
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src += 2;
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chunks = AV_RB16(src); src += 2;
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while(chunks--) {
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dx = AV_RB16(src); src += 2;
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dy = AV_RB16(src); src += 2;
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w = AV_RB16(src); src += 2;
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h = AV_RB16(src); src += 2;
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enc = AV_RB32(src); src += 4;
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chunks = AV_RB16(src);
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src += 2;
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while (chunks--) {
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dx = AV_RB16(src);
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src += 2;
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dy = AV_RB16(src);
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src += 2;
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w = AV_RB16(src);
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src += 2;
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h = AV_RB16(src);
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src += 2;
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enc = AV_RB32(src);
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src += 4;
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outptr = c->pic.data[0] + dx * c->bpp2 + dy * c->pic.linesize[0];
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size_left = buf_size - (src - buf);
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switch(enc) {
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switch (enc) {
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case MAGIC_WMVd: // cursor
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if(size_left < 2 + w * h * c->bpp2 * 2) {
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av_log(avctx, AV_LOG_ERROR, "Premature end of data! (need %i got %i)\n", 2 + w * h * c->bpp2 * 2, size_left);
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if (size_left < 2 + w * h * c->bpp2 * 2) {
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av_log(avctx, AV_LOG_ERROR,
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"Premature end of data! (need %i got %i)\n",
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2 + w * h * c->bpp2 * 2, size_left);
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return -1;
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}
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src += 2;
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@ -350,8 +386,11 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
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c->cur_h = h;
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c->cur_hx = dx;
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c->cur_hy = dy;
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if((c->cur_hx > c->cur_w) || (c->cur_hy > c->cur_h)) {
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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);
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if ((c->cur_hx > c->cur_w) || (c->cur_hy > c->cur_h)) {
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av_log(avctx, AV_LOG_ERROR,
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"Cursor hot spot is not in image: "
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"%ix%i of %ix%i cursor size\n",
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c->cur_hx, c->cur_hy, c->cur_w, c->cur_h);
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c->cur_hx = c->cur_hy = 0;
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}
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c->curbits = av_realloc(c->curbits, c->cur_w * c->cur_h * c->bpp2);
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@ -377,40 +416,52 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
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c->pic.key_frame = 1;
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c->pic.pict_type = AV_PICTURE_TYPE_I;
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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;
|
||||
@ -419,27 +470,30 @@ 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];
|
||||
@ -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->height = avctx->height;
|
||||
|
||||
c->bpp = avctx->bits_per_coded_sample;
|
||||
c->bpp2 = c->bpp/8;
|
||||
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;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user