--- /dev/null
+/******************************************************************************
+ * Arachnoid Graphics Plugin for Mupen64Plus
+ * http://bitbucket.org/wahrhaft/mupen64plus-video-arachnoid/
+ *
+ * Copyright (C) 2007 Kristofer Karlsson, Rickard Niklasson
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *****************************************************************************/
+
+#ifndef ADVANCED_TEX_ENV_COMBINER_H_
+#define ADVANCED_TEX_ENV_COMBINER_H_
+
+#include "CombinerBase.h"
+#include "CombinerStructs.h"
+
+struct TexEnvCombiner;
+
+#ifndef GL_ARB_texture_env_combine
+#define GL_ARB_texture_env_combine 1
+#ifndef HAVE_GLES
+ #define GL_COMBINE_ARB 0x8570
+ #define GL_COMBINE_RGB_ARB 0x8571
+ #define GL_COMBINE_ALPHA_ARB 0x8572
+ #define GL_SOURCE0_RGB_ARB 0x8580
+ #define GL_SOURCE1_RGB_ARB 0x8581
+ #define GL_SOURCE2_RGB_ARB 0x8582
+ #define GL_SOURCE0_ALPHA_ARB 0x8588
+ #define GL_SOURCE1_ALPHA_ARB 0x8589
+ #define GL_SOURCE2_ALPHA_ARB 0x858A
+ #define GL_OPERAND0_RGB_ARB 0x8590
+ #define GL_OPERAND1_RGB_ARB 0x8591
+ #define GL_OPERAND2_RGB_ARB 0x8592
+ #define GL_OPERAND0_ALPHA_ARB 0x8598
+ #define GL_OPERAND1_ALPHA_ARB 0x8599
+ #define GL_OPERAND2_ALPHA_ARB 0x859A
+ #define GL_RGB_SCALE_ARB 0x8573
+ #define GL_ADD_SIGNED_ARB 0x8574
+ #define GL_INTERPOLATE_ARB 0x8575
+ #define GL_CONSTANT_ARB 0x8576
+ #define GL_PRIMARY_COLOR_ARB 0x8577
+ #define GL_PREVIOUS_ARB 0x8578
+ #define GL_SUBTRACT_ARB 0x84E7
+#endif
+#endif
+#define SetColorCombinerValues( n, a, s, o ) \
+ envCombiner->color[n].a.source = s; \
+ envCombiner->color[n].a.operand = o
+
+#define SetAlphaCombinerValues( n, a, s, o ) \
+ envCombiner->alpha[n].a.source = s; \
+ envCombiner->alpha[n].a.operand = o
+
+#define SetAlphaCombinerArg( n, a, i ) \
+ if (TexEnvArgs[i].source == GL_CONSTANT_ARB) \
+ { \
+ if ((envCombiner->alpha[n].constant == COMBINED) || (envCombiner->alpha[n].constant == i)) \
+ { \
+ envCombiner->alpha[n].constant = i; \
+ envCombiner->alpha[n].a.source = GL_CONSTANT_ARB; \
+ envCombiner->alpha[n].a.operand = GL_SRC_ALPHA; \
+ } \
+ else if ((envCombiner->vertex.alpha == COMBINED) || (envCombiner->vertex.alpha == i)) \
+ { \
+ envCombiner->vertex.alpha = i; \
+ envCombiner->alpha[n].a.source = GL_PRIMARY_COLOR_ARB; \
+ envCombiner->alpha[n].a.operand = GL_SRC_ALPHA; \
+ } \
+ } \
+ else \
+ { \
+ envCombiner->alpha[n].a.source = TexEnvArgs[i].source; \
+ envCombiner->alpha[n].a.operand = GL_SRC_ALPHA; \
+ }
+
+#define SetColorCombinerArg( n, a, i ) \
+ if (TexEnvArgs[i].source == GL_CONSTANT_ARB) \
+ { \
+ if ((i > 5) && ((envCombiner->alpha[n].constant == COMBINED) || (envCombiner->alpha[n].constant == i))) \
+ { \
+ envCombiner->alpha[n].constant = i; \
+ envCombiner->color[n].a.source = GL_CONSTANT_ARB; \
+ envCombiner->color[n].a.operand = GL_SRC_ALPHA; \
+ } \
+ else if ((i > 5) && ((envCombiner->vertex.alpha == COMBINED) || (envCombiner->vertex.alpha == i))) \
+ { \
+ envCombiner->vertex.alpha = i; \
+ envCombiner->color[n].a.source = GL_PRIMARY_COLOR_ARB; \
+ envCombiner->color[n].a.operand = GL_SRC_ALPHA; \
+ } \
+ else if ((envCombiner->color[n].constant == COMBINED) || (envCombiner->color[n].constant == i)) \
+ { \
+ envCombiner->color[n].constant = i; \
+ envCombiner->color[n].a.source = GL_CONSTANT_ARB; \
+ envCombiner->color[n].a.operand = GL_SRC_COLOR; \
+ } \
+ else if ( ATIX_texture_env_route && ((envCombiner->vertex.secondaryColor == COMBINED) || (envCombiner->vertex.secondaryColor == i))) \
+ { \
+ envCombiner->vertex.secondaryColor = i; \
+ envCombiner->color[n].a.source = GL_SECONDARY_COLOR_ATIX; \
+ envCombiner->color[n].a.operand = GL_SRC_COLOR; \
+ } \
+ else if ((envCombiner->vertex.color == COMBINED) || (envCombiner->vertex.color == i))\
+ { \
+ envCombiner->vertex.color = i; \
+ envCombiner->color[n].a.source = GL_PRIMARY_COLOR_ARB; \
+ envCombiner->color[n].a.operand = GL_SRC_COLOR; \
+ } \
+ } \
+ else \
+ { \
+ envCombiner->color[n].a.source = TexEnvArgs[i].source; \
+ envCombiner->color[n].a.operand = TexEnvArgs[i].operand; \
+ }
+
+//*****************************************************************************
+//! Advanced Texture Environment Combiner
+//! Class used to combine colors by setting texture enviroment using OpenGL
+//*****************************************************************************
+class AdvancedTexEnvCombiner : public CombinerBase
+{
+public:
+
+ //Constructor / Destructor
+ AdvancedTexEnvCombiner();
+ ~AdvancedTexEnvCombiner();
+
+ //Initialize
+ void initialize();
+
+ //Begin / End Texture Update
+ void beginTextureUpdate();
+ void endTextureUpdate(TexEnvCombiner* texEnv);
+
+ //Sets texture enviorment colors
+ void setTextureEnviromentColors(TexEnvCombiner* texEnv);
+
+ //Create New Texture Environment
+ TexEnvCombiner* createNewTextureEnviroment(Combiner* colorCombiner, Combiner *alphaCombiner);
+
+ //Sets texture enviorment
+ void setTextureEnviroment(TexEnvCombiner* texEnv);
+
+private:
+
+ //Extensions
+ bool ARB_texture_env_combine;
+ bool ARB_texture_env_crossbar;
+ bool ATI_texture_env_combine3;
+ bool ATIX_texture_env_route;
+ bool NV_texture_env_combine4;
+
+};
+
+#endif
notaz.gp2x.de / mupen64plus-pandora.git / blobdiff