diff options
| author | Brian Paul <brian.paul@tungstengraphics.com> | 2001-03-22 04:54:58 +0000 |
|---|---|---|
| committer | Brian Paul <brian.paul@tungstengraphics.com> | 2001-03-22 04:54:58 +0000 |
| commit | 1a59875367b4e38710b37422143efb702b0b1420 (patch) | |
| tree | c11419a3105822a6587bed95918dd5e1eac28523 /src/mesa/swrast/s_texture.c | |
| parent | e9313a64c182701d22a5c6d2a82863c658e7424f (diff) | |
added GL_ARB_texture_env_combine, GL_ARB_texture_env_dot3
Diffstat (limited to 'src/mesa/swrast/s_texture.c')
| -rw-r--r-- | src/mesa/swrast/s_texture.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/src/mesa/swrast/s_texture.c b/src/mesa/swrast/s_texture.c index 6bbf482119..c4512480d5 100644 --- a/src/mesa/swrast/s_texture.c +++ b/src/mesa/swrast/s_texture.c @@ -1,4 +1,4 @@ -/* $Id: s_texture.c,v 1.17 2001/03/21 16:04:49 brianp Exp $ */ +/* $Id: s_texture.c,v 1.18 2001/03/22 04:54:58 brianp Exp $ */ /* * Mesa 3-D graphics library @@ -38,6 +38,14 @@ #include "s_texture.h" +/* XXX this is temporary, until GL/glext.h is updated. */ +#ifndef GL_DOT3_RGB_ARB +#define GL_DOT3_RGB_ARB 0x86AE +#endif +#ifndef GL_DOT3_RGBA_ARB +#define GL_DOT3_RGBA_ARB 0x86AF +#endif + /* * These values are used in the fixed-point arithmetic used @@ -1689,6 +1697,9 @@ texture_combine(const GLcontext *ctx, ASSERT(ctx->Extensions.EXT_texture_env_combine); + /* + * Do operand setup for up to 3 operands. Loop over the terms. + */ for (j = 0; j < 3; j++) { switch (textureUnit->CombineSourceA[j]) { case GL_TEXTURE: @@ -1763,7 +1774,8 @@ texture_combine(const GLcontext *ctx, dst[i][BCOMP] = src[i][ACOMP]; } } - else { /* GL_ONE_MINUS_SRC_ALPHA */ + else { + ASSERT(textureUnit->CombineOperandRGB[j] ==GL_ONE_MINUS_SRC_ALPHA); src = (const GLchan (*)[4]) argA[j]; for (i = 0; i < n; i++) { dst[i][RCOMP] = CHAN_MAX - src[i][ACOMP]; @@ -1794,6 +1806,9 @@ texture_combine(const GLcontext *ctx, } } + /* + * Do the texture combine. + */ switch (textureUnit->CombineModeRGB) { case GL_REPLACE: { @@ -1887,6 +1902,8 @@ texture_combine(const GLcontext *ctx, break; case GL_DOT3_RGB_EXT: case GL_DOT3_RGBA_EXT: + case GL_DOT3_RGB_ARB: + case GL_DOT3_RGBA_ARB: { const GLubyte (*arg0)[4] = (const GLubyte (*)[4]) argRGB[0]; const GLubyte (*arg1)[4] = (const GLubyte (*)[4]) argRGB[1]; @@ -1980,7 +1997,8 @@ texture_combine(const GLcontext *ctx, /* Fix the alpha component for GL_DOT3_RGBA_EXT combining. */ - if (textureUnit->CombineModeRGB == GL_DOT3_RGBA_EXT) { + if (textureUnit->CombineModeRGB == GL_DOT3_RGBA_EXT || + textureUnit->CombineModeRGB == GL_DOT3_RGBA_ARB) { for (i = 0; i < n; i++) { rgba[i][ACOMP] = rgba[i][RCOMP]; } |