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make sure all required functions are available

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This commit is contained in:
FunkyFr3sh 2018-05-09 08:14:10 +02:00
parent ac6221a68a
commit 0a5e4854d4
1 changed files with 6 additions and 3 deletions
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9
src/render.c
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@ -22,7 +22,8 @@
#include "surface.h"
const GLchar *PaletteVertShaderSrc =
"# version 110\n"
"//Vertex shader\n"
"#version 110\n"
"varying vec2 TexCoord0; \n"
"\n"
"void main(void)\n"
@ -82,7 +83,9 @@ DWORD WINAPI render_main(void)
int tex_size = tex_width * tex_height * sizeof(int);
int *tex = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, tex_size);
GLuint paletteConvProgram = OpenGL_BuildProgram(&PaletteVertShaderSrc, &PaletteFragShaderSrc);
GLuint paletteConvProgram = 0;
if (glGetUniformLocation && glActiveTexture && glUniform1i)
paletteConvProgram = OpenGL_BuildProgram(&PaletteVertShaderSrc, &PaletteFragShaderSrc);
// primary surface texture
GLuint surfaceTexId = 0;
@ -143,7 +146,7 @@ DWORD WINAPI render_main(void)
if (ddraw->render.maxfps > 0)
tick_start = timeGetTime();
if (paletteConvProgram && glActiveTexture && glUniform1i)
if (paletteConvProgram)
{
glActiveTexture(GL_TEXTURE0);
glEnable(GL_TEXTURE_2D);