diff options
Diffstat (limited to 'src/mesa/main/texstate.c')
| -rw-r--r-- | src/mesa/main/texstate.c | 134 |
1 files changed, 133 insertions, 1 deletions
diff --git a/src/mesa/main/texstate.c b/src/mesa/main/texstate.c index 09bf872fe4..b9bb8f5f15 100644 --- a/src/mesa/main/texstate.c +++ b/src/mesa/main/texstate.c @@ -1,4 +1,4 @@ -/* $Id: texstate.c,v 1.53 2001/06/13 14:56:14 brianp Exp $ */ +/* $Id: texstate.c,v 1.54 2001/06/18 17:26:08 brianp Exp $ */ /* * Mesa 3-D graphics library @@ -2062,3 +2062,135 @@ _mesa_ClientActiveTextureARB( GLenum target ) FLUSH_VERTICES(ctx, _NEW_ARRAY); ctx->Array.ActiveTexture = texUnit; } + + + +/**********************************************************************/ +/* Pixel Texgen Extensions */ +/**********************************************************************/ + +void +_mesa_PixelTexGenSGIX(GLenum mode) +{ + GLenum newRgbSource, newAlphaSource; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + switch (mode) { + case GL_NONE: + newRgbSource = GL_PIXEL_GROUP_COLOR_SGIS; + newAlphaSource = GL_PIXEL_GROUP_COLOR_SGIS; + break; + case GL_ALPHA: + newRgbSource = GL_PIXEL_GROUP_COLOR_SGIS; + newAlphaSource = GL_CURRENT_RASTER_COLOR; + break; + case GL_RGB: + newRgbSource = GL_CURRENT_RASTER_COLOR; + newAlphaSource = GL_PIXEL_GROUP_COLOR_SGIS; + break; + case GL_RGBA: + newRgbSource = GL_CURRENT_RASTER_COLOR; + newAlphaSource = GL_CURRENT_RASTER_COLOR; + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glPixelTexGenSGIX(mode)"); + return; + } + + if (newRgbSource == ctx->Pixel.FragmentRgbSource && + newAlphaSource == ctx->Pixel.FragmentAlphaSource) + return; + + FLUSH_VERTICES(ctx, _NEW_PIXEL); + ctx->Pixel.FragmentRgbSource = newRgbSource; + ctx->Pixel.FragmentAlphaSource = newAlphaSource; +} + + +void +_mesa_PixelTexGenParameterfSGIS(GLenum target, GLfloat value) +{ + _mesa_PixelTexGenParameteriSGIS(target, (GLint) value); +} + + +void +_mesa_PixelTexGenParameterfvSGIS(GLenum target, const GLfloat *value) +{ + _mesa_PixelTexGenParameteriSGIS(target, (GLint) *value); +} + + +void +_mesa_PixelTexGenParameteriSGIS(GLenum target, GLint value) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (value != GL_CURRENT_RASTER_COLOR && value != GL_PIXEL_GROUP_COLOR_SGIS) { + _mesa_error(ctx, GL_INVALID_ENUM, "glPixelTexGenParameterSGIS(value)"); + return; + } + + switch (target) { + case GL_PIXEL_FRAGMENT_RGB_SOURCE_SGIS: + if (ctx->Pixel.FragmentRgbSource == (GLenum) value) + return; + FLUSH_VERTICES(ctx, _NEW_PIXEL); + ctx->Pixel.FragmentRgbSource = (GLenum) value; + break; + case GL_PIXEL_FRAGMENT_ALPHA_SOURCE_SGIS: + if (ctx->Pixel.FragmentAlphaSource == (GLenum) value) + return; + FLUSH_VERTICES(ctx, _NEW_PIXEL); + ctx->Pixel.FragmentAlphaSource = (GLenum) value; + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glPixelTexGenParameterSGIS(target)"); + return; + } +} + + +void +_mesa_PixelTexGenParameterivSGIS(GLenum target, const GLint *value) +{ + _mesa_PixelTexGenParameteriSGIS(target, *value); +} + + +void +_mesa_GetPixelTexGenParameterfvSGIS(GLenum target, GLfloat *value) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (target == GL_PIXEL_FRAGMENT_RGB_SOURCE_SGIS) { + *value = (GLfloat) ctx->Pixel.FragmentRgbSource; + } + else if (target == GL_PIXEL_FRAGMENT_ALPHA_SOURCE_SGIS) { + *value = (GLfloat) ctx->Pixel.FragmentAlphaSource; + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetPixelTexGenParameterfvSGIS(target)"); + } +} + + +void +_mesa_GetPixelTexGenParameterivSGIS(GLenum target, GLint *value) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (target == GL_PIXEL_FRAGMENT_RGB_SOURCE_SGIS) { + *value = (GLint) ctx->Pixel.FragmentRgbSource; + } + else if (target == GL_PIXEL_FRAGMENT_ALPHA_SOURCE_SGIS) { + *value = (GLint) ctx->Pixel.FragmentAlphaSource; + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetPixelTexGenParameterivSGIS(target)"); + } +} |