diff options
Diffstat (limited to 'src/mesa/main')
| -rw-r--r-- | src/mesa/main/texutil.c | 71 | ||||
| -rw-r--r-- | src/mesa/main/texutil.h | 9 |
2 files changed, 76 insertions, 4 deletions
diff --git a/src/mesa/main/texutil.c b/src/mesa/main/texutil.c index 67805c8d71b..33295fdcb4d 100644 --- a/src/mesa/main/texutil.c +++ b/src/mesa/main/texutil.c @@ -1,7 +1,8 @@ +/* $Id: texutil.c,v 1.6 2000/08/29 23:30:53 brianp Exp $ */ /* * Mesa 3-D graphics library - * Version: 3.3 + * Version: 3.4 * * Copyright (C) 1999-2000 Brian Paul All Rights Reserved. * @@ -586,6 +587,7 @@ _mesa_convert_teximage(MesaIntTexFormat dstFormat, break; case MESA_A8_R8_G8_B8: + case MESA_FF_R8_G8_B8: /* 32-bit texels */ if (srcFormat == GL_BGRA && srcType == GL_UNSIGNED_INT_8_8_8_8_REV){ /* special, optimized case */ @@ -661,13 +663,63 @@ _mesa_convert_teximage(MesaIntTexFormat dstFormat, } } } + else if (srcFormat == GL_RGB && srcType == GL_UNSIGNED_BYTE) { + /* general case */ + if (wScale == 1 && hScale == 1) { + const GLubyte *src = _mesa_image_address(packing, srcImage, + srcWidth, srcHeight, srcFormat, srcType, 0, 0, 0); + const GLint srcStride = _mesa_image_row_stride(packing, + srcWidth, srcFormat, srcType); + GLuint *dst = dstImage; + GLint row; + for (row = 0; row < dstHeight; row++) { + GLint col, col3; + for (col = col3 = 0; col < dstWidth; col++, col3 += 3) { + GLubyte r = src[col3 + 0]; + GLubyte g = src[col3 + 1]; + GLubyte b = src[col3 + 2]; + GLubyte a = 255; + dst[col] = (a << 24) | (r << 16) | (g << 8) | b; + } + src += srcStride; + dst = (GLuint *) ((GLubyte *) dst + dstRowStride); + } + } + else { + /* must rescale image */ + GLuint *dst = dstImage; + GLint row; + for (row = 0; row < dstHeight; row++) { + GLint srcRow = row / hScale; + const GLubyte *src = _mesa_image_address(packing, srcImage, + srcWidth, srcHeight, srcFormat, srcType, 0, srcRow, 0); + GLint col; + for (col = 0; col < dstWidth; col++) { + GLint col3 = (col / wScale) * 3; + GLubyte r = src[col3 + 0]; + GLubyte g = src[col3 + 1]; + GLubyte b = src[col3 + 2]; + GLubyte a = 255; + dst[col] = (a << 24) | (r << 16) | (g << 8) | b; + } + dst = (GLuint *) ((GLubyte *) dst + dstRowStride); + } + } + } else { /* can't handle this source format/type combination */ return GL_FALSE; } + if (dstFormat == MESA_FF_R8_G8_B8) { + /* set alpha bytes to 0xff */ + GLuint i; + GLubyte *dst = (GLubyte *) dstImage; + for (i = 0; i < dstWidth * dstHeight; i++) { + dst[i * 4 + 3] = 0xff; + } + } break; - default: /* unexpected internal format! */ return GL_FALSE; @@ -1140,6 +1192,7 @@ _mesa_convert_texsubimage(MesaIntTexFormat dstFormat, break; case MESA_A8_R8_G8_B8: + case MESA_FF_R8_G8_B8: /* 32-bit texels */ if (srcFormat == GL_BGRA && srcType == GL_UNSIGNED_INT_8_8_8_8_REV){ /* special, optimized case */ @@ -1223,6 +1276,18 @@ _mesa_convert_texsubimage(MesaIntTexFormat dstFormat, /* can't handle this source format/type combination */ return GL_FALSE; } + if (dstFormat == MESA_FF_R8_G8_B8) { + /* set alpha bytes to 0xff */ + GLint row, col; + GLubyte *dst = (GLubyte *) dstImage + + dstYoffset * dstRowStride + dstXoffset; + for (row = 0; row < height; row++) { + for (col = 0; col < width; col++) { + dst[col * 4 + 3] = 0xff; + } + dst = dst + dstRowStride; + } + } break; @@ -1491,6 +1556,7 @@ _mesa_unconvert_teximage(MesaIntTexFormat srcFormat, } break; case MESA_A8_R8_G8_B8: + case MESA_FF_R8_G8_B8: ASSERT(dstFormat == GL_RGBA); if (wScale == 1 && hScale == 1) { GLint i, n = dstWidth * dstHeight; @@ -1546,6 +1612,7 @@ _mesa_set_teximage_component_sizes(MesaIntTexFormat mesaFormat, { MESA_A4_R4_G4_B4, 4, 4, 4, 4, 0, 0, 0 }, { MESA_A1_R5_G5_B5, 5, 5, 5, 1, 0, 0, 0 }, { MESA_A8_R8_G8_B8, 8, 8, 8, 8, 0, 0, 0 }, + { MESA_FF_R8_G8_B8, 8, 8, 8, 8, 0, 0, 0 }, { -1, 0, 0, 0, 0, 0, 0, 0 } }; GLint i; diff --git a/src/mesa/main/texutil.h b/src/mesa/main/texutil.h index 5f000be603a..23116bf5ce4 100644 --- a/src/mesa/main/texutil.h +++ b/src/mesa/main/texutil.h @@ -1,7 +1,8 @@ +/* $Id: texutil.h,v 1.4 2000/08/29 23:30:53 brianp Exp $ */ /* * Mesa 3-D graphics library - * Version: 3.3 + * Version: 3.4 * * Copyright (C) 1999-2000 Brian Paul All Rights Reserved. * @@ -32,6 +33,9 @@ +/* + * NOTE: "FF" means fill with byte value 0xff + */ /* msb <------ TEXEL BITS -----------> lsb */ typedef enum { /* ---- ---- ---- ---- ---- ---- ---- ---- */ MESA_I8, /* IIII IIII */ @@ -42,7 +46,8 @@ typedef enum { /* ---- ---- ---- ---- ---- ---- ---- ---- */ MESA_R5_G6_B5, /* RRRR RGGG GGGB BBBB */ MESA_A4_R4_G4_B4, /* AAAA RRRR GGGG BBBB */ MESA_A1_R5_G5_B5, /* ARRR RRGG GGGB BBBB */ - MESA_A8_R8_G8_B8 /* AAAA AAAA RRRR RRRR GGGG GGGG BBBB BBBB */ + MESA_A8_R8_G8_B8, /* AAAA AAAA RRRR RRRR GGGG GGGG BBBB BBBB */ + MESA_FF_R8_G8_B8 /* FFFF FFFF RRRR RRRR GGGG GGGG BBBB BBBB */ } MesaIntTexFormat; |