medfall

commit 6905c1b8eb2e8a740246f94dfd00c717048410c2
parent d8c1a3d91ad6ba1718225b93500fbb9a4a52f7fe
Author: Michael Savage <mikejsavage@gmail.com>
Date:   Fri Oct 28 20:01:25 +0300

Don't need 3 buffers with the same data in immediate renderer

Diffstat:
immediate.cc
 | 
15
+++++----------
1 file changed, 5 insertions(+), 10 deletions(-)
diff --git a/immediate.cc b/immediate.cc
@@ -223,26 +223,21 @@ void immediate_render(
 ) {
 	GLuint vao;
 	glGenVertexArrays( 1, &vao );
-
 	glBindVertexArray( vao );
 
-	const u32 num_vbos = 3;
-	GLuint vbos[ num_vbos ];
-	glGenBuffers( num_vbos, vbos );
+	GLuint vbo;
+	glGenBuffers( 1, &vbo );
+	glBindBuffer( GL_ARRAY_BUFFER, vbo );
 
-	glBindBuffer( GL_ARRAY_BUFFER, vbos[ 0 ] );
 	glBufferData( GL_ARRAY_BUFFER, ctx->num_triangles * sizeof( ImmediateTriangle ), ctx->triangles, GL_STATIC_DRAW );
+
 	glEnableVertexAttribArray( at_position );
 	glVertexAttribPointer( at_position, 3, GL_FLOAT, GL_FALSE, sizeof( ImmediateVertex ), 0 );
 
-	glBindBuffer( GL_ARRAY_BUFFER, vbos[ 1 ] );
-	glBufferData( GL_ARRAY_BUFFER, ctx->num_triangles * sizeof( ImmediateTriangle ), ctx->triangles, GL_STATIC_DRAW );
 	glEnableVertexAttribArray( at_colour );
 	glVertexAttribPointer( at_colour, 3, GL_FLOAT, GL_FALSE, sizeof( ImmediateVertex ), ( GLvoid * ) offsetof( ImmediateVertex, colour ) );
 
 	if( textured ) {
-		glBindBuffer( GL_ARRAY_BUFFER, vbos[ 2 ] );
-		glBufferData( GL_ARRAY_BUFFER, ctx->num_triangles * sizeof( ImmediateTriangle ), ctx->triangles, GL_STATIC_DRAW );
 		glEnableVertexAttribArray( at_uv );
 		glVertexAttribPointer( at_uv, 2, GL_FLOAT, GL_FALSE, sizeof( ImmediateVertex ), ( GLvoid * ) offsetof( ImmediateVertex, uv ) );
 
@@ -254,7 +249,7 @@ void immediate_render(
 	glBindVertexArray( 0 );
 	glBindBuffer( GL_ARRAY_BUFFER, 0 );
 
-	glDeleteBuffers( num_vbos, vbos );
+	glDeleteBuffers( 1, &vbo );
 	glDeleteVertexArrays( 1, &vao );
 }