From afb630ce4d04cc1d953e77612de90457eeac148e Mon Sep 17 00:00:00 2001 From: Connor Worley Date: Sat, 10 Feb 2024 14:58:47 -0800 Subject: [PATCH] lavc/dxv: remove ctx fields that can be derived from texdsp ctxs Signed-off-by: Connor Worley --- libavcodec/dxv.c | 53 ++++++++---------------------------------------- 1 file changed, 9 insertions(+), 44 deletions(-) diff --git a/libavcodec/dxv.c b/libavcodec/dxv.c index cd78de3e0d..82c493f1de 100644 --- a/libavcodec/dxv.c +++ b/libavcodec/dxv.c @@ -39,20 +39,12 @@ typedef struct DXVContext { uint8_t *tex_data; // Compressed texture uint8_t *ctex_data; // Compressed chroma texture - int tex_rat; // Compression ratio - int tex_step; // Distance between blocks - int ctex_step; // Distance between blocks + int64_t tex_size; // Texture size int64_t ctex_size; // Chroma texture size uint8_t *op_data[4]; // Opcodes int64_t op_size[4]; // Opcodes size - - int texture_block_w; - int texture_block_h; - - int ctexture_block_w; - int ctexture_block_h; } DXVContext; /* This scheme addresses already decoded elements depending on 2-bit status: @@ -865,9 +857,6 @@ static int dxv_decode(AVCodecContext *avctx, AVFrame *frame, cavctx.coded_height = avctx->coded_height / 2; cavctx.coded_width = avctx->coded_width / 2; - ctx->texture_block_h = 4; - ctx->texture_block_w = 4; - avctx->pix_fmt = AV_PIX_FMT_RGBA; avctx->colorspace = AVCOL_SPC_RGB; @@ -878,8 +867,6 @@ static int dxv_decode(AVCodecContext *avctx, AVFrame *frame, texdsp_ctx.tex_funct = ctx->texdsp.dxt1_block; texdsp_ctx.tex_ratio = 8; texdsp_ctx.raw_ratio = 16; - ctx->tex_rat = 8; - ctx->tex_step = 8; msgcomp = "DXTR1"; msgtext = "DXT1"; break; @@ -889,8 +876,6 @@ static int dxv_decode(AVCodecContext *avctx, AVFrame *frame, texdsp_ctx.tex_funct = ctx->texdsp.dxt4_block; texdsp_ctx.tex_ratio = 16; texdsp_ctx.raw_ratio = 16; - ctx->tex_rat = 4; - ctx->tex_step = 16; msgcomp = "DXTR5"; msgtext = "DXT5"; break; @@ -902,16 +887,8 @@ static int dxv_decode(AVCodecContext *avctx, AVFrame *frame, ctexdsp_ctx.tex_funct = ctx->texdsp.rgtc1u_gray_block; ctexdsp_ctx.tex_ratio = 16; ctexdsp_ctx.raw_ratio = 4; - ctx->tex_rat = 8; - ctx->tex_step = 32; - ctx->ctex_step = 16; msgcomp = "YOCOCG6"; msgtext = "YCG6"; - ctx->ctex_size = avctx->coded_width * avctx->coded_height / 4; - ctx->texture_block_h = 4; - ctx->texture_block_w = 16; - ctx->ctexture_block_h = 4; - ctx->ctexture_block_w = 4; avctx->pix_fmt = AV_PIX_FMT_YUV420P; avctx->colorspace = AVCOL_SPC_YCOCG; break; @@ -923,16 +900,8 @@ static int dxv_decode(AVCodecContext *avctx, AVFrame *frame, ctexdsp_ctx.tex_funct = ctx->texdsp.rgtc1u_gray_block; ctexdsp_ctx.tex_ratio = 16; ctexdsp_ctx.raw_ratio = 4; - ctx->tex_rat = 4; - ctx->tex_step = 64; - ctx->ctex_step = 16; msgcomp = "YAOCOCG10"; msgtext = "YG10"; - ctx->ctex_size = avctx->coded_width * avctx->coded_height / 4; - ctx->texture_block_h = 4; - ctx->texture_block_w = 16; - ctx->ctexture_block_h = 4; - ctx->ctexture_block_w = 4; avctx->pix_fmt = AV_PIX_FMT_YUVA420P; avctx->colorspace = AVCOL_SPC_YCOCG; break; @@ -957,7 +926,6 @@ static int dxv_decode(AVCodecContext *avctx, AVFrame *frame, texdsp_ctx.tex_funct = ctx->texdsp.dxt5_block; texdsp_ctx.tex_ratio = 16; texdsp_ctx.raw_ratio = 16; - ctx->tex_step = 16; } else if (old_type & 0x20 || version_major == 1) { tag = DXV_FMT_DXT1; msgtext = "DXT1"; @@ -965,12 +933,10 @@ static int dxv_decode(AVCodecContext *avctx, AVFrame *frame, texdsp_ctx.tex_funct = ctx->texdsp.dxt1_block; texdsp_ctx.tex_ratio = 8; texdsp_ctx.raw_ratio = 16; - ctx->tex_step = 8; } else { av_log(avctx, AV_LOG_ERROR, "Unsupported header (0x%08"PRIX32")\n.", tag); return AVERROR_INVALIDDATA; } - ctx->tex_rat = 1; break; } @@ -986,7 +952,6 @@ static int dxv_decode(AVCodecContext *avctx, AVFrame *frame, /* Encoder copies texture data when compression is not advantageous. */ if (bytestream2_get_byte(gbc)) { msgcomp = "RAW"; - ctx->tex_rat = 1; decompress_tex = dxv_decompress_raw; } @@ -1004,14 +969,20 @@ static int dxv_decode(AVCodecContext *avctx, AVFrame *frame, return AVERROR_INVALIDDATA; } - ctx->tex_size = avctx->coded_width * avctx->coded_height * 4 / ctx->tex_rat; + ctx->tex_size = avctx->coded_width / (texdsp_ctx.raw_ratio / (avctx->pix_fmt == AV_PIX_FMT_RGBA ? 4 : 1)) * + avctx->coded_height / TEXTURE_BLOCK_H * + texdsp_ctx.tex_ratio; ret = av_reallocp(&ctx->tex_data, ctx->tex_size + AV_INPUT_BUFFER_PADDING_SIZE); if (ret < 0) return ret; - if (ctx->ctex_size) { + if (avctx->pix_fmt != AV_PIX_FMT_RGBA) { int i; + ctx->ctex_size = cavctx.coded_width / ctexdsp_ctx.raw_ratio * + cavctx.coded_height / TEXTURE_BLOCK_H * + ctexdsp_ctx.tex_ratio; + ctx->op_size[0] = avctx->coded_width * avctx->coded_height / 16; ctx->op_size[1] = avctx->coded_width * avctx->coded_height / 32; ctx->op_size[2] = avctx->coded_width * avctx->coded_height / 32; @@ -1031,12 +1002,6 @@ static int dxv_decode(AVCodecContext *avctx, AVFrame *frame, ret = decompress_tex(avctx); if (ret < 0) return ret; - { - int w_block = avctx->coded_width / ctx->texture_block_w; - int h_block = avctx->coded_height / ctx->texture_block_h; - if (w_block * h_block * ctx->tex_step > ctx->tex_size * 8LL) - return AVERROR_INVALIDDATA; - } ret = ff_thread_get_buffer(avctx, frame, 0); if (ret < 0)