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authorBrian Paul <brian.paul@tungstengraphics.com>2000-08-29 23:30:53 +0000
committerBrian Paul <brian.paul@tungstengraphics.com>2000-08-29 23:30:53 +0000
commit148fb313c5cd60cc2920e2c91fc9d632252a62f8 (patch)
tree02c4282739cd549e37b030e4bf349d395499fe6c /src
parente8e20ae5982c71b2142f4b37c3926682e1f96998 (diff)
added MESA_FF_R8_G8_B8 (alpha filled to 0xff) format
Diffstat (limited to 'src')
-rw-r--r--src/mesa/main/texutil.c71
-rw-r--r--src/mesa/main/texutil.h9
2 files changed, 76 insertions, 4 deletions
diff --git a/src/mesa/main/texutil.c b/src/mesa/main/texutil.c
index 67805c8d71..33295fdcb4 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 5f000be603..23116bf5ce 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;