Polymer GPU program management stuff.

git-svn-id: https://svn.eduke32.com/eduke32@1152 1a8010ca-5511-0410-912e-c29ae57300e0

polymer/eduke32/build/include/polymer.h

@@ -108,8 +108,34 @@ typedef struct      s_pranimatespritesinfo {
     int             x, y, a, smoothratio;
 }                   _pranimatespritesinfo;
 
-extern _prsector*   prsectors[MAXSECTORS];
-extern _prwall*     prwalls[MAXWALLS];
+#define             PR_MAXLIGHTS 128
+
+typedef enum {
+                    PR_LIGHT_POINT,
+                    PR_LIGHT_SPOT,
+                    PR_LIGHT_DIRECTIONAL
+}                   prlighttype;
+
+typedef struct      s_prlight {
+    int             x, y, z, horiz, range, faderange;
+    short           angle, sector;
+    prlighttype     type;
+}                   _prlight;
+
+#define             PR_INFO_LOG_BUFFER_SIZE 512
+
+typedef enum {
+                    PR_BIT_DEFAULT, // must be just before last
+                    PR_BIT_COUNT    // must be last
+}                   prbittype;
+
+typedef struct      s_prprogrambit {
+    int             bit;
+    char*           vert_def;
+    char*           vert_prog;
+    char*           frag_def;
+    char*           frag_prog;
+}                   _prprogrambit;
 
 // CONTROL
 extern int          updatesectors;
@@ -123,6 +149,8 @@ void                polymer_drawmasks(void);
 void                polymer_rotatesprite(int sx, int sy, int z, short a, short picnum, signed char dashade, char dapalnum, char dastat, int cx1, int cy1, int cx2, int cy2);
 void                polymer_drawmaskwall(int damaskwallcnt);
 void                polymer_drawsprite(int snum);
+void                polymer_resetlights(void);
+void                polymer_addlight(_prlight light);
 
 # ifdef POLYMER_C
 
@@ -160,6 +188,8 @@ static void         polymer_drawskybox(short tilenum);
 // MDSPRITES
 static void         polymer_drawmdsprite(spritetype *tspr);
 static void         polymer_loadmodelvbos(md3model* m);
+// GPU PROGRAMS
+static void         polymer_compileprogram(int programbits);
 
 # endif // !POLYMER_C
 

polymer/eduke32/build/src/polymer.c

@@ -118,6 +118,32 @@ GLuint          skyboxdatavbo;
 
 GLfloat         artskydata[16];
 
+_prlight        prlights[PR_MAXLIGHTS];
+int             lightcount;
+
+_prprogrambit   prprogrambits[PR_BIT_COUNT] = {
+    {
+        .bit = 1 << PR_BIT_DEFAULT,
+        .vert_def =
+                "\n"
+                "void main(void)\n"
+                "{\n",
+        .vert_prog =
+                "  gl_Position = ftransform();\n"
+                "}\n",
+        .frag_def =
+                "\n"
+                "void main(void)\n"
+                "{\n"
+                "  vec4 result = vec4(1.0, 1.0, 1.0, 1.0);\n",
+        .frag_prog =
+                "  gl_FragColor = result;\n"
+                "}\n",
+    }
+};
+
+GLhandleARB     prprograms[1 << PR_BIT_COUNT];
+
 // CONTROL
 GLdouble        spritemodelview[16];
 GLdouble        rootmodelviewmatrix[16];
@@ -619,6 +645,17 @@ void                polymer_setanimatesprites(animatespritesptr animatesprites,
     asi.smoothratio = smoothratio;
 }
 
+void                polymer_resetlights(void)
+{
+    lightcount = 0;
+}
+
+void                polymer_addlight(_prlight light)
+{
+    if (lightcount < PR_MAXLIGHTS)
+        prlights[lightcount++] = light;
+}
+
 // CORE
 static void         polymer_displayrooms(short dacursectnum)
 {
@@ -2511,4 +2548,77 @@ static void         polymer_loadmodelvbos(md3model* m)
     }
 }
 
+// GPU PROGRAMS
+static void         polymer_compileprogram(int programbits)
+{
+    int             i, enabledbits;
+    GLhandleARB     vert, frag, program;
+    GLcharARB*      source[PR_BIT_COUNT * 2];
+    GLcharARB       infobuffer[PR_INFO_LOG_BUFFER_SIZE];
+
+    // ========= VERTEX
+    vert = bglCreateShaderObjectARB(GL_VERTEX_SHADER_ARB);
+
+    enabledbits = 0;
+    while (i < PR_BIT_COUNT)
+    {
+        if (programbits & prprogrambits[i].bit)
+        {
+            source[i] = prprogrambits[i].vert_def;
+            enabledbits++;
+        }
+        i++;
+    }
+    i = 0;
+    while (i < PR_BIT_COUNT)
+    {
+        if (programbits & prprogrambits[i].bit)
+            source[enabledbits + i] = prprogrambits[i].vert_prog;
+        i++;
+    }
+
+    bglShaderSourceARB(vert, enabledbits * 2, (const GLcharARB**)source, NULL);
+
+    bglCompileShaderARB(vert);
+
+    // ========= FRAGMENT
+    frag = bglCreateShaderObjectARB(GL_FRAGMENT_SHADER_ARB);
+
+    enabledbits = i = 0;
+    while (i < PR_BIT_COUNT)
+    {
+        if (programbits & prprogrambits[i].bit)
+        {
+            source[i] = prprogrambits[i].frag_def;
+            enabledbits++;
+        }
+        i++;
+    }
+    i = 0;
+    while (i < PR_BIT_COUNT)
+    {
+        if (programbits & prprogrambits[i].bit)
+            source[enabledbits + i] = prprogrambits[i].frag_prog;
+        i++;
+    }
+
+    bglShaderSourceARB(frag, enabledbits * 2, (const GLcharARB**)source, NULL);
+
+    bglCompileShaderARB(frag);
+
+    // ========= PROGRAM
+    program = bglCreateProgramObjectARB();
+
+    bglAttachObjectARB(program, vert);
+    bglAttachObjectARB(program, frag);
+
+    bglLinkProgramARB(program);
+
+    bglGetInfoLogARB(program, PR_INFO_LOG_BUFFER_SIZE, NULL, infobuffer);
+
+    prprograms[programbits] = program;
+
+    OSD_Printf("Shader log info:\n%s\n", infobuffer);
+}
+
 #endif