Remove a lot of OpenGL extension checks.

[xonotic/darkplaces.git] / gl_backend.c

diff --git a/gl_backend.c b/gl_backend.c
index 68c16fc7ec5c4a3c59bf11962d4ab1eae30f089c..670d1b55d3200dec0ae37845b0e7c01abba53e1e 100644 (file)
--- a/gl_backend.c
+++ b/gl_backend.c
@@ -1058,27 +1058,27 @@ int R_Mesh_CreateFramebufferObject(rtexture_t *depthtexture, rtexture_t *colorte
                if (colortexture4 && colortexture4->renderbuffernum) qglFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT3 , GL_RENDERBUFFER, colortexture4->renderbuffernum);CHECKGLERROR
 
 #ifndef USE_GLES2
-               if (colortexture4 && qglDrawBuffersARB)
+               if (colortexture4)
                {
-                       qglDrawBuffersARB(4, drawbuffers);CHECKGLERROR
+                       qglDrawBuffers(4, drawbuffers);CHECKGLERROR
                        qglReadBuffer(GL_NONE);CHECKGLERROR
                }
-               else if (colortexture3 && qglDrawBuffersARB)
+               else if (colortexture3)
                {
-                       qglDrawBuffersARB(3, drawbuffers);CHECKGLERROR
+                       qglDrawBuffers(3, drawbuffers);CHECKGLERROR
                        qglReadBuffer(GL_NONE);CHECKGLERROR
                }
-               else if (colortexture2 && qglDrawBuffersARB)
+               else if (colortexture2)
                {
-                       qglDrawBuffersARB(2, drawbuffers);CHECKGLERROR
+                       qglDrawBuffers(2, drawbuffers);CHECKGLERROR
                        qglReadBuffer(GL_NONE);CHECKGLERROR
                }
-               else if (colortexture && qglDrawBuffer)
+               else if (colortexture)
                {
                        qglDrawBuffer(GL_COLOR_ATTACHMENT0);CHECKGLERROR
                        qglReadBuffer(GL_COLOR_ATTACHMENT0);CHECKGLERROR
                }
-               else if (qglDrawBuffer)
+               else
                {
                        qglDrawBuffer(GL_NONE);CHECKGLERROR
                        qglReadBuffer(GL_NONE);CHECKGLERROR
@@ -1449,18 +1449,18 @@ void GL_AlphaToCoverage(qboolean state)
                case RENDERPATH_GLES2:
                        break;
                case RENDERPATH_GL32:
-#ifdef GL_SAMPLE_ALPHA_TO_COVERAGE_ARB
+#ifndef USE_GLES2
                        // alpha to coverage turns the alpha value of the pixel into 0%, 25%, 50%, 75% or 100% by masking the multisample fragments accordingly
                        CHECKGLERROR
                        if (gl_state.alphatocoverage)
                        {
-                               qglEnable(GL_SAMPLE_ALPHA_TO_COVERAGE_ARB);CHECKGLERROR
-//                             qglEnable(GL_MULTISAMPLE_ARB);CHECKGLERROR
+                               qglEnable(GL_SAMPLE_ALPHA_TO_COVERAGE);CHECKGLERROR
+//                             qglEnable(GL_MULTISAMPLE);CHECKGLERROR
                        }
                        else
                        {
-                               qglDisable(GL_SAMPLE_ALPHA_TO_COVERAGE_ARB);CHECKGLERROR
-//                             qglDisable(GL_MULTISAMPLE_ARB);CHECKGLERROR
+                               qglDisable(GL_SAMPLE_ALPHA_TO_COVERAGE);CHECKGLERROR
+//                             qglDisable(GL_MULTISAMPLE);CHECKGLERROR
                        }
 #endif
                        break;
@@ -2250,7 +2250,7 @@ void GL_BlendEquationSubtract(qboolean negated)
                {
                case RENDERPATH_GL32:
                case RENDERPATH_GLES2:
-                       qglBlendEquationEXT(GL_FUNC_REVERSE_SUBTRACT);CHECKGLERROR
+                       qglBlendEquation(GL_FUNC_REVERSE_SUBTRACT);CHECKGLERROR
                        break;
                }
        }
@@ -2260,7 +2260,7 @@ void GL_BlendEquationSubtract(qboolean negated)
                {
                case RENDERPATH_GL32:
                case RENDERPATH_GLES2:
-                       qglBlendEquationEXT(GL_FUNC_ADD);CHECKGLERROR
+                       qglBlendEquation(GL_FUNC_ADD);CHECKGLERROR
                        break;
                }
        }