diff options
Diffstat (limited to 'source/blender/gpu/intern/gpu_draw.c')
| -rw-r--r-- | source/blender/gpu/intern/gpu_draw.c | 126 |
1 files changed, 109 insertions, 17 deletions
diff --git a/source/blender/gpu/intern/gpu_draw.c b/source/blender/gpu/intern/gpu_draw.c index 4197e1a3edb..9d3463d3d19 100644 --- a/source/blender/gpu/intern/gpu_draw.c +++ b/source/blender/gpu/intern/gpu_draw.c @@ -427,8 +427,8 @@ int GPU_verify_image(Image *ima, ImageUser *iuser, int tftile, int compare, int ImBuf *ibuf = NULL; unsigned int *bind = NULL; int rectw, recth, tpx=0, tpy=0, y; - unsigned int *tilerect= NULL, *scalerect= NULL, *rect= NULL; - float *ftilerect= NULL, *fscalerect = NULL, *frect = NULL; + unsigned int *tilerect= NULL, *rect= NULL; + float *ftilerect= NULL, *frect = NULL; float *srgb_frect = NULL; short texwindx, texwindy, texwinsx, texwinsy; /* flag to determine whether high resolution format is used */ @@ -611,8 +611,33 @@ int GPU_verify_image(Image *ima, ImageUser *iuser, int tftile, int compare, int rect= tilerect; } } +#ifdef WITH_DDS + if (ibuf->ftype & DDS) + GPU_create_gl_tex_compressed(bind, rect, rectw, recth, mipmap, ima, ibuf); + else +#endif + GPU_create_gl_tex(bind, rect, frect, rectw, recth, mipmap, use_high_bit_depth, ima); + + /* clean up */ + if (tilerect) + MEM_freeN(tilerect); + if (ftilerect) + MEM_freeN(ftilerect); + if (srgb_frect) + MEM_freeN(srgb_frect); + + return *bind; +} - /* scale if not a power of two. this is not strictly necessary for newer +void GPU_create_gl_tex(unsigned int *bind, unsigned int *pix, float * frect, int rectw, int recth, int mipmap, int use_high_bit_depth, Image *ima) +{ + unsigned int *scalerect = NULL; + float *fscalerect = NULL; + + int tpx = rectw; + int tpy = recth; + + /* scale if not a power of two. this is not strictly necessary for newer * GPUs (OpenGL version >= 2.0) since they support non-power-of-two-textures */ if (!is_pow2_limit(rectw) || !is_pow2_limit(recth)) { rectw= smaller_pow2_limit(rectw); @@ -626,9 +651,9 @@ int GPU_verify_image(Image *ima, ImageUser *iuser, int tftile, int compare, int } else { scalerect= MEM_mallocN(rectw*recth*sizeof(*scalerect), "scalerect"); - gluScaleImage(GL_RGBA, tpx, tpy, GL_UNSIGNED_BYTE, rect, rectw, recth, GL_UNSIGNED_BYTE, scalerect); + gluScaleImage(GL_RGBA, tpx, tpy, GL_UNSIGNED_BYTE, pix, rectw, recth, GL_UNSIGNED_BYTE, scalerect); - rect= scalerect; + pix= scalerect; } } @@ -640,7 +665,7 @@ int GPU_verify_image(Image *ima, ImageUser *iuser, int tftile, int compare, int if (use_high_bit_depth) glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16, rectw, recth, 0, GL_RGBA, GL_FLOAT, frect); else - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, rectw, recth, 0, GL_RGBA, GL_UNSIGNED_BYTE, rect); + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, rectw, recth, 0, GL_RGBA, GL_UNSIGNED_BYTE, pix); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gpu_get_mipmap_filter(1)); } @@ -649,14 +674,14 @@ int GPU_verify_image(Image *ima, ImageUser *iuser, int tftile, int compare, int if (use_high_bit_depth) glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16, rectw, recth, 0, GL_RGBA, GL_FLOAT, frect); else - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, rectw, recth, 0, GL_RGBA, GL_UNSIGNED_BYTE, rect); + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, rectw, recth, 0, GL_RGBA, GL_UNSIGNED_BYTE, pix); glGenerateMipmapEXT(GL_TEXTURE_2D); } else { if (use_high_bit_depth) gluBuild2DMipmaps(GL_TEXTURE_2D, GL_RGBA16, rectw, recth, GL_RGBA, GL_FLOAT, frect); else - gluBuild2DMipmaps(GL_TEXTURE_2D, GL_RGBA, rectw, recth, GL_RGBA, GL_UNSIGNED_BYTE, rect); + gluBuild2DMipmaps(GL_TEXTURE_2D, GL_RGBA, rectw, recth, GL_RGBA, GL_UNSIGNED_BYTE, pix); } glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gpu_get_mipmap_filter(0)); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gpu_get_mipmap_filter(1)); @@ -668,21 +693,88 @@ int GPU_verify_image(Image *ima, ImageUser *iuser, int tftile, int compare, int glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, GPU_get_anisotropic()); /* set to modulate with vertex color */ glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); - - /* clean up */ - if (tilerect) - MEM_freeN(tilerect); - if (ftilerect) - MEM_freeN(ftilerect); + if (scalerect) MEM_freeN(scalerect); if (fscalerect) MEM_freeN(fscalerect); - if (srgb_frect) - MEM_freeN(srgb_frect); - return *bind; } +/** + * GPU_upload_dxt_texture() assumes that the texture is already bound and ready to go. + * This is so the viewport and the BGE can share some code. + * Returns FALSE if the provided ImBuf doesn't have a supported DXT compression format + */ +int GPU_upload_dxt_texture(ImBuf *ibuf) +{ +#if WITH_DDS + GLint format = 0; + int blocksize, height, width, i, size, offset = 0; + + height = ibuf->x; + width = ibuf->y; + + if (GLEW_EXT_texture_compression_s3tc) { + if (ibuf->dds_data.fourcc == FOURCC_DXT1) + format = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT; + else if (ibuf->dds_data.fourcc == FOURCC_DXT3) + format = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT; + else if (ibuf->dds_data.fourcc == FOURCC_DXT5) + format = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT; + } + + if (format == 0) { + printf("Unable to find a suitable DXT compression, falling back to uncompressed\n"); + return FALSE; + } + + blocksize = (format == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) ? 8 : 16; + for (i=0; i<ibuf->dds_data.nummipmaps && (width||height); ++i) { + if (width == 0) + width = 1; + if (height == 0) + height = 1; + + size = ((width+3)/4)*((height+3)/4)*blocksize; + + glCompressedTexImage2D(GL_TEXTURE_2D, i, format, width, height, + 0, size, ibuf->dds_data.data + offset); + + offset += size; + width >>= 1; + height >>= 1; + } + + return TRUE; +#else + (void)ibuf; + return FALSE; +#endif +} + +void GPU_create_gl_tex_compressed(unsigned int *bind, unsigned int *pix, int x, int y, int mipmap, Image *ima, ImBuf *ibuf) +{ +#ifndef WITH_DDS + (void)ibuf; + /* Fall back to uncompressed if DDS isn't enabled */ + GPU_create_gl_tex(bind, pix, NULL, x, y, mipmap, 0, ima); +#else + + + glGenTextures(1, (GLuint *)bind); + glBindTexture(GL_TEXTURE_2D, *bind); + + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gpu_get_mipmap_filter(1)); + + glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); + + if (GPU_upload_dxt_texture(ibuf) == 0) { + glDeleteTextures(1, (GLuint*)bind); + GPU_create_gl_tex(bind, pix, NULL, x, y, mipmap, 0, ima); + } +#endif +} static void gpu_verify_repeat(Image *ima) { /* set either clamp or repeat in X/Y */ |