Optimize buffer recreations

Dmitry Kolzov · Dmitry Kolzov · commit 5fb98276cc0b · 2017-04-19T17:32:54.000+02:00
diff --git a/App/Renderers/PT/ptrenderer.cpp b/App/Renderers/PT/ptrenderer.cpp
@@ -322,8 +322,9 @@ namespace Baikal
 		if (output)
 		{
 			auto current_output = FindFirstNonZeroOutput();
+			auto required_size = output->width() * output->height();
 
-			if (!current_output || current_output->width() < output->width() || current_output->height() < output->height())
+			if (required_size > m_render_data->paths.GetElementCount())
 			{
 				ResizeWorkingSet(*output);
 			}
diff --git a/App/main.cpp b/App/main.cpp
@@ -256,7 +256,8 @@ void InitGraphics()
 {
     g_shader_manager.reset(new ShaderManager());
 
-    glClearColor(0.0, 0.5, 0.0, 0.0);CHECK_GL_ERROR;
+	glGetError();
+	glClearColor(0.0, 0.5, 0.0, 0.0); CHECK_GL_ERROR;
     glDisable(GL_DEPTH_TEST);CHECK_GL_ERROR;
 
     glGenBuffers(1, &g_vertex_buffer);CHECK_GL_ERROR;

Original file line number	Diff line number	Diff line change
`@@ -322,8 +322,9 @@ namespace Baikal`
`322`	`322`	`if (output)`
`323`	`323`	`{`
`324`	`324`	`auto current_output = FindFirstNonZeroOutput();`
	`325`	`+ auto required_size = output->width() * output->height();`
`325`	`326`
`326`		`- if (!current_output \|\| current_output->width() < output->width() \|\| current_output->height() < output->height())`
	`327`	`+ if (required_size > m_render_data->paths.GetElementCount())`
`327`	`328`	`{`
`328`	`329`	`ResizeWorkingSet(*output);`
`329`	`330`	`}`
Original file line number	Diff line number	Diff line change
`@@ -256,7 +256,8 @@ void InitGraphics()`
`256`	`256`	`{`
`257`	`257`	`g_shader_manager.reset(new ShaderManager());`
`258`	`258`
`259`		`- glClearColor(0.0, 0.5, 0.0, 0.0);CHECK_GL_ERROR;`
	`259`	`+ glGetError();`
	`260`	`+ glClearColor(0.0, 0.5, 0.0, 0.0); CHECK_GL_ERROR;`
`260`	`261`	`glDisable(GL_DEPTH_TEST);CHECK_GL_ERROR;`
`261`	`262`
`262`	`263`	`glGenBuffers(1, &g_vertex_buffer);CHECK_GL_ERROR;`