From adf6d0d9f7bf4942f72b3563cdf77dfecea5ec7d Mon Sep 17 00:00:00 2001 From: Daniel Borca Date: Thu, 24 Jun 2004 06:48:05 +0000 Subject: hack for compressed textures with aspectratio greater than 8:1 --- src/mesa/drivers/glide/fxdd.c | 1 - src/mesa/drivers/glide/fxddtex.c | 102 ++++++++++++++++++++------------------- src/mesa/drivers/glide/fxdrv.h | 3 -- src/mesa/drivers/glide/fxsetup.c | 13 +++++ 4 files changed, 66 insertions(+), 53 deletions(-) (limited to 'src') diff --git a/src/mesa/drivers/glide/fxdd.c b/src/mesa/drivers/glide/fxdd.c index 8315096a0bf..c743a9f2d64 100644 --- a/src/mesa/drivers/glide/fxdd.c +++ b/src/mesa/drivers/glide/fxdd.c @@ -1718,7 +1718,6 @@ fxSetupDDPointers(GLcontext * ctx) ctx->Driver.TexSubImage2D = fxDDTexSubImage2D; ctx->Driver.CompressedTexImage2D = fxDDCompressedTexImage2D; ctx->Driver.CompressedTexSubImage2D = fxDDCompressedTexSubImage2D; - ctx->Driver.CompressedTextureSize = fxDDCompressedTextureSize; ctx->Driver.TestProxyTexImage = fxDDTestProxyTexImage; ctx->Driver.TexEnv = fxDDTexEnv; ctx->Driver.TexParameter = fxDDTexParam; diff --git a/src/mesa/drivers/glide/fxddtex.c b/src/mesa/drivers/glide/fxddtex.c index 2a263798c5f..f433c573d47 100644 --- a/src/mesa/drivers/glide/fxddtex.c +++ b/src/mesa/drivers/glide/fxddtex.c @@ -926,31 +926,6 @@ PrintTexture(int w, int h, int c, const GLubyte * data) } -GLuint fxDDCompressedTextureSize (GLcontext *ctx, - GLsizei width, GLsizei height, GLsizei depth, - GLenum format) -{ - int wScale, hScale; - - ASSERT(depth == 1); - - /* Determine width and height scale factors for texture. - * Remember, Glide is limited to 8:1 aspect ratios. - */ - fxTexGetInfo(width, height, - NULL, /* lod level */ - NULL, /* aspect ratio */ - NULL, NULL, /* sscale, tscale */ - &wScale, &hScale); - - return _mesa_compressed_texture_size(ctx, - width * wScale, - height * hScale, - depth, - format); -} - - const struct gl_texture_format * fxDDChooseTextureFormat( GLcontext *ctx, GLint internalFormat, GLenum srcFormat, GLenum srcType ) @@ -1315,11 +1290,6 @@ fxDDTexImage2D(GLcontext * ctx, GLenum target, GLint level, internalFormat = GL_COMPRESSED_RGBA_FXT1_3DFX; } texImage->IntFormat = internalFormat; - texImage->CompressedSize = _mesa_compressed_texture_size(ctx, - mml->width, - mml->height, - 1, - internalFormat); } #endif #if FX_TC_NAPALM @@ -1333,11 +1303,6 @@ fxDDTexImage2D(GLcontext * ctx, GLenum target, GLint level, if (texNapalm) { texImage->IntFormat = internalFormat = texNapalm; texImage->IsCompressed = GL_TRUE; - texImage->CompressedSize = _mesa_compressed_texture_size(ctx, - mml->width, - mml->height, - 1, - texNapalm); } } #endif @@ -1355,7 +1320,12 @@ fxDDTexImage2D(GLcontext * ctx, GLenum target, GLint level, /* allocate mipmap buffer */ assert(!texImage->Data); if (texImage->IsCompressed) { - dstRowStride = _mesa_compressed_row_stride(texImage->IntFormat, mml->width); + texImage->CompressedSize = _mesa_compressed_texture_size(ctx, + mml->width, + mml->height, + 1, + internalFormat); + dstRowStride = _mesa_compressed_row_stride(internalFormat, mml->width); texImage->Data = MESA_PBUFFER_ALLOC(texImage->CompressedSize); } else { dstRowStride = mml->width * texelBytes; @@ -1569,7 +1539,7 @@ fxDDCompressedTexImage2D (GLcontext *ctx, GLenum target, if (!texImage->DriverData) { texImage->DriverData = CALLOC(sizeof(tfxMipMapLevel)); if (!texImage->DriverData) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D"); + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2D"); return; } } @@ -1595,22 +1565,46 @@ fxDDCompressedTexImage2D (GLcontext *ctx, GLenum target, /* allocate new storage for texture image, if needed */ if (!texImage->Data) { - texImage->Data = MESA_PBUFFER_ALLOC(imageSize); + texImage->CompressedSize = _mesa_compressed_texture_size(ctx, + mml->width, + mml->height, + 1, + internalFormat); + texImage->Data = MESA_PBUFFER_ALLOC(texImage->CompressedSize); if (!texImage->Data) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D"); + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2D"); return; } } /* save the texture data */ - MEMCPY(texImage->Data, data, imageSize); - /* [dBorca] Hack alert: - * in order to account for apect ratio and other anomalies, - * we would need to decompress the image. Note, however that - * certain rescaling factors (x4, x8) can be treated simpler - * if they match the compressed texture microtile size. - * Cheeky idea: use textureBuffer to decompress in hardware! - */ + if (mml->wScale != 1 || mml->hScale != 1) { + /* [dBorca] Hack alert: + * now we're screwed. We can't decompress, + * unless we do it in HW (via textureBuffer). + * We still have some chances: + * 1) we got FXT1 textures - we CAN decompress, rescale for + * aspectratio, then compress back. + * 2) there is a chance that MIN("s", "t") won't be overflowed. + * Thus, we don't care about textureclamp and we could lower + * MIN("uscale", "vscale") below 32. We still have to have + * our data aligned inside a 8:1 rectangle. + * 3) just in case if MIN("s", "t") gets overflowed with GL_REPEAT, + * we replicate the data over the padded area. + */ + GLuint srcRowStride = _mesa_compressed_row_stride(internalFormat, width); + + GLuint destRowStride = _mesa_compressed_row_stride(internalFormat, + mml->width); + + _mesa_upscale_teximage2d(srcRowStride, (height+3) / 4, + destRowStride, (mml->height+3) / 4, + 1, data, srcRowStride, + texImage->Data); + + } else { + MEMCPY(texImage->Data, data, texImage->CompressedSize); + } ti->info.format = mml->glideFormat; texImage->FetchTexelc = fxFetchFunction(texImage->TexFormat->MesaFormat); @@ -1667,10 +1661,10 @@ fxDDCompressedTexSubImage2D( GLcontext *ctx, GLenum target, srcRowStride = _mesa_compressed_row_stride(texImage->IntFormat, width); destRowStride = _mesa_compressed_row_stride(texImage->IntFormat, - texImage->Width); + mml->width); dest = _mesa_compressed_image_address(xoffset, yoffset, 0, texImage->IntFormat, - texImage->Width, + mml->width, (GLubyte*) texImage->Data); rows = height / 4; /* [dBorca] hardcoded 4, but works for FXT1/DXTC */ @@ -1684,6 +1678,16 @@ fxDDCompressedTexSubImage2D( GLcontext *ctx, GLenum target, /* [dBorca] Hack alert: * see fxDDCompressedTexImage2D for caveats */ + if (mml->wScale != 1 || mml->hScale != 1) { + srcRowStride = _mesa_compressed_row_stride(texImage->IntFormat, texImage->Width); + + destRowStride = _mesa_compressed_row_stride(texImage->IntFormat, + mml->width); + _mesa_upscale_teximage2d(srcRowStride, texImage->Height / 4, + destRowStride, mml->height / 4, + 1, texImage->Data, destRowStride, + texImage->Data); + } /* [dBorca] * Hack alert: unsure... diff --git a/src/mesa/drivers/glide/fxdrv.h b/src/mesa/drivers/glide/fxdrv.h index 214a57edb7b..cfe43bb687c 100644 --- a/src/mesa/drivers/glide/fxdrv.h +++ b/src/mesa/drivers/glide/fxdrv.h @@ -575,9 +575,6 @@ extern void fxPrintTextureData(tfxTexInfo * ti); extern const struct gl_texture_format * fxDDChooseTextureFormat( GLcontext *ctx, GLint internalFormat, GLenum srcFormat, GLenum srcType ); -extern GLuint fxDDCompressedTextureSize (GLcontext *ctx, - GLsizei width, GLsizei height, GLsizei depth, - GLenum format); extern void fxDDTexImage2D(GLcontext * ctx, GLenum target, GLint level, GLint internalFormat, GLint width, GLint height, GLint border, GLenum format, GLenum type, diff --git a/src/mesa/drivers/glide/fxsetup.c b/src/mesa/drivers/glide/fxsetup.c index abef71a35e3..9aa9599ae4c 100644 --- a/src/mesa/drivers/glide/fxsetup.c +++ b/src/mesa/drivers/glide/fxsetup.c @@ -153,6 +153,19 @@ fxTexValidate(GLcontext * ctx, struct gl_texture_object *tObj) else FX_smallLodLog2(ti->info) = FX_largeLodLog2(ti->info); + /* this is necessary because of fxDDCompressedTexImage2D */ + if ((ti->info.format == GR_TEXFMT_ARGB_CMP_FXT1) || + (ti->info.format == GR_TEXFMT_ARGB_CMP_DXT1) || + (ti->info.format == GR_TEXFMT_ARGB_CMP_DXT3) || + (ti->info.format == GR_TEXFMT_ARGB_CMP_DXT5)) { + struct gl_texture_image *texImage = tObj->Image[0][minl]; + tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage); + if (mml->wScale != 1 || mml->hScale != 1) { + ti->sScale /= mml->wScale; + ti->tScale /= mml->hScale; + } + } + ti->baseLevelInternalFormat = tObj->Image[0][minl]->Format; ti->validated = GL_TRUE; -- cgit v1.2.3