diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/drivers/dri/tdfx/tdfx_tex.c | 71 |
1 files changed, 63 insertions, 8 deletions
diff --git a/src/mesa/drivers/dri/tdfx/tdfx_tex.c b/src/mesa/drivers/dri/tdfx/tdfx_tex.c index ebb06b1d35..b16f1caa6b 100644 --- a/src/mesa/drivers/dri/tdfx/tdfx_tex.c +++ b/src/mesa/drivers/dri/tdfx/tdfx_tex.c @@ -49,19 +49,56 @@ #include "tdfx_texman.h" +/* no borders! can't halve 1x1! (stride > width * comp) not allowed */ void -_mesa_halve2x2_teximage2d ( GLuint bytesPerPixel, +_mesa_halve2x2_teximage2d ( GLcontext *ctx, + struct gl_texture_image *texImage, + GLuint bytesPerPixel, GLint srcWidth, GLint srcHeight, const GLvoid *srcImage, GLvoid *dstImage ) { GLint i, j, k; - const GLint dstWidth = srcWidth / 2; - const GLint dstHeight = srcHeight / 2; - const GLint srcRowStride = srcWidth * bytesPerPixel; - const GLubyte *src = srcImage; + GLint dstWidth = srcWidth / 2; + GLint dstHeight = srcHeight / 2; + GLint srcRowStride = srcWidth * bytesPerPixel; + GLubyte *src = (GLubyte *)srcImage; GLubyte *dst = dstImage; - /* no borders! can't halve 1x1! (stride > width * comp) not allowed */ + GLuint bpt = 0; + GLubyte *_s = NULL; + GLubyte *_d = NULL; + GLenum _t; + + if (texImage->TexFormat->MesaFormat == MESA_FORMAT_RGB565) { + _t = GL_UNSIGNED_SHORT_5_6_5_REV; + bpt = bytesPerPixel; + } else if (texImage->TexFormat->MesaFormat == MESA_FORMAT_ARGB4444) { + _t = GL_UNSIGNED_SHORT_4_4_4_4_REV; + bpt = bytesPerPixel; + } else if (texImage->TexFormat->MesaFormat == MESA_FORMAT_ARGB1555) { + _t = GL_UNSIGNED_SHORT_1_5_5_5_REV; + bpt = bytesPerPixel; + } + if (bpt) { + bytesPerPixel = 4; + srcRowStride = srcWidth * bytesPerPixel; + if (dstWidth == 0) { + dstWidth = 1; + } + if (dstHeight == 0) { + dstHeight = 1; + } + _s = src = MALLOC(srcRowStride * srcHeight); + _d = dst = MALLOC(dstWidth * bytesPerPixel * dstHeight); + _mesa_texstore_rgba8888(ctx, 2, GL_RGBA, + &_mesa_texformat_rgba8888_rev, src, + 0, 0, 0, /* dstX/Y/Zoffset */ + srcRowStride, /* dstRowStride */ + 0, /* dstImageStride */ + srcWidth, srcHeight, 1, + texImage->Format, _t, srcImage, &ctx->DefaultPacking); + } + if (srcHeight == 1) { for (i = 0; i < dstWidth; i++) { for (k = 0; k < bytesPerPixel; k++) { @@ -96,6 +133,20 @@ _mesa_halve2x2_teximage2d ( GLuint bytesPerPixel, src += srcRowStride; } } + + if (bpt) { + src = _s; + dst = _d; + texImage->TexFormat->StoreImage(ctx, 2, texImage->Format, + texImage->TexFormat, dstImage, + 0, 0, 0, /* dstX/Y/Zoffset */ + dstWidth * bpt, + 0, /* dstImageStride */ + dstWidth, dstHeight, 1, + GL_BGRA, CHAN_TYPE, dst, &ctx->DefaultPacking); + FREE(dst); + FREE(src); + } } @@ -1363,7 +1414,9 @@ tdfxTexImage2D(GLcontext *ctx, GLenum target, GLint level, NULL); mipImage = _mesa_select_tex_image(ctx, texUnit, target, level); mip = TDFX_TEXIMAGE_DATA(mipImage); - _mesa_halve2x2_teximage2d(texelBytes, + _mesa_halve2x2_teximage2d(ctx, + texImage, + texelBytes, mml->width, mml->height, texImage->Data, mipImage->Data); texImage = mipImage; @@ -1470,7 +1523,9 @@ tdfxTexSubImage2D(GLcontext *ctx, GLenum target, GLint level, ++level; mipImage = _mesa_select_tex_image(ctx, texUnit, target, level); mip = TDFX_TEXIMAGE_DATA(mipImage); - _mesa_halve2x2_teximage2d(texelBytes, + _mesa_halve2x2_teximage2d(ctx, + texImage, + texelBytes, mml->width, mml->height, texImage->Data, mipImage->Data); texImage = mipImage; |