]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - gl_backend.c
optimized LoadTGA to have fast paths for all formats, rather than one unified loading...
[xonotic/darkplaces.git] / gl_backend.c
index 16e4377d170108ff9b090c15131a4a18c0877fd2..ca2b7104e976313f12c82d35623fb61edcafbbc8 100644 (file)
@@ -379,7 +379,7 @@ typedef struct gltextureunit_s
        int arrayenabled;
        unsigned int arraycomponents;
        const void *pointer_texcoord;
-       float rgbscale, alphascale;
+       int rgbscale, alphascale;
        int combinergb, combinealpha;
        // FIXME: add more combine stuff
        // texmatrixenabled exists only to avoid unnecessary texmatrix compares
@@ -396,6 +396,7 @@ static struct gl_state_s
        GLboolean depthmask;
        int colormask; // stored as bottom 4 bits: r g b a (3 2 1 0 order)
        int depthtest;
+       int alphatest;
        int scissortest;
        unsigned int unit;
        unsigned int clientunit;
@@ -503,6 +504,7 @@ void GL_Backend_ResetState(void)
 {
        memset(&gl_state, 0, sizeof(gl_state));
        gl_state.depthtest = true;
+       gl_state.alphatest = false;
        gl_state.blendfunc1 = GL_ONE;
        gl_state.blendfunc2 = GL_ZERO;
        gl_state.blend = false;
@@ -517,11 +519,14 @@ void GL_Backend_ResetState(void)
        CHECKGLERROR
 
        qglColorMask(1, 1, 1, 1);
-       qglEnable(GL_CULL_FACE);CHECKGLERROR
-       qglCullFace(GL_FRONT);CHECKGLERROR
-       qglEnable(GL_DEPTH_TEST);CHECKGLERROR
+       qglAlphaFunc(GL_GEQUAL, 0.5);CHECKGLERROR
+       qglDisable(GL_ALPHA_TEST);CHECKGLERROR
        qglBlendFunc(gl_state.blendfunc1, gl_state.blendfunc2);CHECKGLERROR
        qglDisable(GL_BLEND);CHECKGLERROR
+       qglCullFace(GL_FRONT);CHECKGLERROR
+       qglEnable(GL_CULL_FACE);CHECKGLERROR
+       qglDepthFunc(GL_LEQUAL);CHECKGLERROR
+       qglEnable(GL_DEPTH_TEST);CHECKGLERROR
        qglDepthMask(gl_state.depthmask);CHECKGLERROR
 
        qglVertexPointer(3, GL_FLOAT, sizeof(float[3]), NULL);CHECKGLERROR
@@ -621,6 +626,22 @@ void GL_DepthTest(int state)
        }
 }
 
+void GL_AlphaTest(int state)
+{
+       if (gl_state.alphatest != state)
+       {
+               gl_state.alphatest = state;
+               if (gl_state.alphatest)
+               {
+                       qglEnable(GL_ALPHA_TEST);CHECKGLERROR
+               }
+               else
+               {
+                       qglDisable(GL_ALPHA_TEST);CHECKGLERROR
+               }
+       }
+}
+
 void GL_ColorMask(int r, int g, int b, int a)
 {
        int state = r*8 + g*4 + b*2 + a*1;
@@ -724,6 +745,26 @@ unsigned int GL_Backend_CompileProgram(int vertexstrings_count, const char **ver
        if (!programobject)
                return 0;
 
+       if (developer.integer >= 100)
+       {
+               int i;
+               Con_Printf("Compiling shader:\n");
+               if (vertexstrings_count)
+               {
+                       Con_Printf("------ VERTEX SHADER ------\n");
+                       for (i = 0;i < vertexstrings_count;i++)
+                               Con_Print(vertexstrings_list[i]);
+                       Con_Print("\n");
+               }
+               if (fragmentstrings_count)
+               {
+                       Con_Printf("------ FRAGMENT SHADER ------\n");
+                       for (i = 0;i < fragmentstrings_count;i++)
+                               Con_Print(fragmentstrings_list[i]);
+                       Con_Print("\n");
+               }
+       }
+
        if (vertexstrings_count)
        {
                CHECKGLERROR
@@ -1555,15 +1596,12 @@ void R_Mesh_TexCombine(unsigned int unitnum, int combinergb, int combinealpha, i
        }
 }
 
-void R_Mesh_State(const rmeshstate_t *m)
+void R_Mesh_TextureState(const rmeshstate_t *m)
 {
        unsigned int i;
 
        BACKENDACTIVECHECK
 
-       R_Mesh_VertexPointer(m->pointer_vertex);
-       R_Mesh_ColorPointer(m->pointer_color);
-
        if (gl_backend_rebindtextures)
        {
                gl_backend_rebindtextures = false;
@@ -1586,6 +1624,124 @@ void R_Mesh_State(const rmeshstate_t *m)
        }
 }
 
+void R_Mesh_ResetTextureState(void)
+{
+       unsigned int unitnum;
+
+       BACKENDACTIVECHECK
+
+       if (gl_backend_rebindtextures)
+       {
+               gl_backend_rebindtextures = false;
+               GL_SetupTextureState();
+       }
+
+       for (unitnum = 0;unitnum < backendimageunits;unitnum++)
+       {
+               gltextureunit_t *unit = gl_state.units + unitnum;
+               // update 1d texture binding
+               if (unit->t1d)
+               {
+                       GL_ActiveTexture(unitnum);
+                       if (unitnum < backendunits)
+                               qglDisable(GL_TEXTURE_1D);
+                       unit->t1d = 0;
+                       qglBindTexture(GL_TEXTURE_1D, unit->t1d);
+                       CHECKGLERROR
+               }
+               // update 2d texture binding
+               if (unit->t2d)
+               {
+                       GL_ActiveTexture(unitnum);
+                       if (unitnum < backendunits)
+                               qglDisable(GL_TEXTURE_2D);
+                       unit->t2d = 0;
+                       qglBindTexture(GL_TEXTURE_2D, unit->t2d);
+                       CHECKGLERROR
+               }
+               // update 3d texture binding
+               if (unit->t3d)
+               {
+                       GL_ActiveTexture(unitnum);
+                       if (unitnum < backendunits)
+                               qglDisable(GL_TEXTURE_3D);
+                       unit->t3d = 0;
+                       qglBindTexture(GL_TEXTURE_3D, unit->t3d);
+                       CHECKGLERROR
+               }
+               // update cubemap texture binding
+               if (unit->tcubemap)
+               {
+                       GL_ActiveTexture(unitnum);
+                       if (unitnum < backendunits)
+                               qglDisable(GL_TEXTURE_CUBE_MAP_ARB);
+                       unit->tcubemap = 0;
+                       qglBindTexture(GL_TEXTURE_CUBE_MAP_ARB, unit->tcubemap);
+                       CHECKGLERROR
+               }
+       }
+       for (unitnum = 0;unitnum < backendarrayunits;unitnum++)
+       {
+               gltextureunit_t *unit = gl_state.units + unitnum;
+               // texture array unit is disabled, disable the array
+               if (unit->arrayenabled)
+               {
+                       unit->arrayenabled = false;
+                       GL_ClientActiveTexture(unitnum);
+                       qglDisableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR
+               }
+       }
+       for (unitnum = 0;unitnum < backendunits;unitnum++)
+       {
+               gltextureunit_t *unit = gl_state.units + unitnum;
+               // no texmatrix specified, revert to identity
+               if (unit->texmatrixenabled)
+               {
+                       unit->texmatrixenabled = false;
+                       qglMatrixMode(GL_TEXTURE);
+                       GL_ActiveTexture(unitnum);
+                       qglLoadIdentity();
+                       qglMatrixMode(GL_MODELVIEW);
+               }
+               if (gl_combine.integer)
+               {
+                       // GL_ARB_texture_env_combine
+                       if (unit->combinergb != GL_MODULATE)
+                       {
+                               unit->combinergb = GL_MODULATE;
+                               GL_ActiveTexture(unitnum);
+                               qglTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, unit->combinergb);CHECKGLERROR
+                       }
+                       if (unit->combinealpha != GL_MODULATE)
+                       {
+                               unit->combinealpha = GL_MODULATE;
+                               GL_ActiveTexture(unitnum);
+                               qglTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, unit->combinealpha);CHECKGLERROR
+                       }
+                       if (unit->rgbscale != 1)
+                       {
+                               GL_ActiveTexture(unitnum);
+                               qglTexEnvi(GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, (unit->rgbscale = 1));CHECKGLERROR
+                       }
+                       if (unit->alphascale != 1)
+                       {
+                               GL_ActiveTexture(unitnum);
+                               qglTexEnvi(GL_TEXTURE_ENV, GL_ALPHA_SCALE, (unit->alphascale = 1));CHECKGLERROR
+                       }
+               }
+               else
+               {
+                       // normal GL texenv
+                       if (unit->combinergb != GL_MODULATE)
+                       {
+                               unit->combinergb = GL_MODULATE;
+                               GL_ActiveTexture(unitnum);
+                               qglTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, unit->combinergb);CHECKGLERROR
+                       }
+               }
+       }
+}
+
 void R_Mesh_Draw_ShowTris(int firstvertex, int numvertices, int numtriangles, const int *elements)
 {
        qglBegin(GL_LINES);