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disable shader program before glDrawPixels

This commit is contained in:
Brian 2007-06-08 13:02:14 -06:00
parent 009ddb4e50
commit 5e9cff0b97
1 changed files with 10 additions and 6 deletions
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16
progs/tests/drawbuffers.c
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@ -19,6 +19,7 @@ static int Win;
static int Width = 400, Height = 400;
static GLuint FBobject, RBobjects[3];
static GLfloat Xrot = 0.0, Yrot = 0.0;
static GLuint Program;
static void
@ -40,6 +41,8 @@ Display(void)
GL_COLOR_ATTACHMENT1_EXT
};
glUseProgram_func(Program);
/* draw to user framebuffer */
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, FBobject);
@ -75,6 +78,7 @@ Display(void)
buffer + Width * Height / 2 * 4);
/* draw to window */
glUseProgram_func(0);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
glWindowPos2iARB(0, 0);
glDrawPixels(Width, Height, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
@ -243,15 +247,15 @@ SetupShaders(void)
" gl_FragData[1] = vec4(1.0) - gl_Color; \n"
"}\n";
GLuint fragShader, program;
GLuint fragShader;
fragShader = LoadAndCompileShader(GL_FRAGMENT_SHADER, fragShaderText);
program = glCreateProgram_func();
Program = glCreateProgram_func();
glAttachShader_func(program, fragShader);
glLinkProgram_func(program);
CheckLink(program);
glUseProgram_func(program);
glAttachShader_func(Program, fragShader);
glLinkProgram_func(Program);
CheckLink(Program);
glUseProgram_func(Program);
}