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OGL: Move attributeless VAO creation to Init.

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This way we won't trash an existing bound VBO by mistake.
This commit is contained in:
Unknown W. Brackets 2014-12-11 01:00:37 -08:00
parent 290fd545e6
commit de2abbed17
3 changed files with 14 additions and 9 deletions
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12
Source/Core/VideoBackends/OGL/GLUtil.cpp
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@ -115,12 +115,14 @@ GLuint OpenGL_CompileProgram(const char* vertexShader, const char* fragmentShade
return programID;
}
static void CreateAttributelessVAO()
void OpenGL_CreateAttributelessVAO()
{
glGenVertexArrays(1, &attributelessVAO);
_dbg_assert_msg_(VIDEO, attributelessVAO != 0, "Attributeless VAO should have been created successfully.")
// In a compatibility context, we require a valid, bound array buffer.
glGenBuffers(1, &attributelessVBO);
_dbg_assert_msg_(VIDEO, attributelessVBO != 0, "Attributeless VBO should have been created successfully.")
// Initialize the buffer with nothing.
glBindBuffer(GL_ARRAY_BUFFER, attributelessVBO);
@ -132,16 +134,14 @@ static void CreateAttributelessVAO()
void OpenGL_BindAttributelessVAO()
{
if (attributelessVAO == 0)
CreateAttributelessVAO();
_dbg_assert_msg_(VIDEO, attributelessVAO != 0, "Attributeless VAO should have already been created.")
glBindVertexArray(attributelessVAO);
glBindBuffer(GL_ARRAY_BUFFER, attributelessVBO);
}
void OpenGL_DeleteAttributelessVAO()
{
if (attributelessVAO)
_dbg_assert_msg_(VIDEO, attributelessVAO != 0, "Attributeless VAO should have already been created.")
if (attributelessVAO != 0)
{
glDeleteVertexArrays(1, &attributelessVAO);
glDeleteBuffers(1, &attributelessVBO);

9
Source/Core/VideoBackends/OGL/GLUtil.h
View File

@ -18,11 +18,14 @@ void InitInterface();
// Helpers
GLuint OpenGL_CompileProgram(const char *vertexShader, const char *fragmentShader);
// Binds (and creates, if necessary) a VAO and VBO suitable for attributeless rendering.
void OpenGL_BindAttributelessVAO();
// Deletes any existing VAO / VBO that has been created.
// Creates and deletes a VAO and VBO suitable for attributeless rendering.
// Called by the Renderer.
void OpenGL_CreateAttributelessVAO();
void OpenGL_DeleteAttributelessVAO();
// Binds the VAO suitable for attributeless rendering.
void OpenGL_BindAttributelessVAO();
// this should be removed in future, but as long as glsl is unstable, we should really read this messages
#if defined(_DEBUG) || defined(DEBUGFAST)
#define DEBUG_GLSL 1

2
Source/Core/VideoBackends/OGL/Render.cpp
View File

@ -714,6 +714,8 @@ void Renderer::Init()
" ocol0 = c;\n"
"}\n");
OpenGL_CreateAttributelessVAO();
// creating buffers
glGenBuffers(1, &s_ShowEFBCopyRegions_VBO);
glGenVertexArrays(1, &s_ShowEFBCopyRegions_VAO);