X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fbackends%2Fvulkan%2Fcommands_backend.cpp;h=d655134d032fdf95cf05fe6a5d7941868cd2c341;hb=016f0f0dd51511f98d0bf398d99199d7dec1543c;hp=bf8ee3f13d5652c21a14db09ff1e077e016740cc;hpb=6d2e2a0bb28496a8c25b441009bdd2a1a1e72d81;p=libs%2Fgl.git

diff --git a/source/backends/vulkan/commands_backend.cpp b/source/backends/vulkan/commands_backend.cpp
index bf8ee3f1..d655134d 100644
--- a/source/backends/vulkan/commands_backend.cpp
+++ b/source/backends/vulkan/commands_backend.cpp
@@ -97,11 +97,15 @@ void VulkanCommands::begin_render_pass(bool clear, const ClearValue *clear_value
 		if(dynamic_cast<const SwapChainTexture *>(framebuffer->get_attachment(i)))
 			fb_is_swapchain = true;
 
-	discard_fb_contents = (clear && !viewport);
+	Rect fb_rect = framebuffer->get_rect();
+	Rect render_area = fb_rect.intersect(viewport);
+	bool full_viewport = render_area==fb_rect;
+	discard_fb_contents = (clear && full_viewport);
 
 	framebuffer->refresh();
 
-	VkRenderPass render_pass = device.get_pipeline_cache().get_render_pass(framebuffer->get_format(), clear, (!clear_values && !viewport), fb_is_swapchain);
+	VkRenderPass render_pass = device.get_pipeline_cache().get_render_pass(framebuffer->get_format(),
+		clear, (!clear_values && full_viewport), fb_is_swapchain);
 	begin_buffer(render_pass);
 
 	StructureBuilder sb(pass_begin_info, 2);
@@ -112,18 +116,10 @@ void VulkanCommands::begin_render_pass(bool clear, const ClearValue *clear_value
 	begin_info->renderPass = handle_cast<::VkRenderPass>(render_pass);
 	begin_info->framebuffer = handle_cast<::VkFramebuffer>(framebuffer->handle);
 
-	if(viewport)
-	{
-		begin_info->renderArea.offset.x = viewport->left;
-		begin_info->renderArea.offset.y = viewport->bottom;
-		begin_info->renderArea.extent.width = viewport->width;
-		begin_info->renderArea.extent.height = viewport->height;
-	}
-	else
-	{
-		begin_info->renderArea.extent.width = framebuffer->get_width();
-		begin_info->renderArea.extent.height = framebuffer->get_height();
-	}
+	begin_info->renderArea.offset.x = render_area.left;
+	begin_info->renderArea.offset.y = render_area.bottom;
+	begin_info->renderArea.extent.width = render_area.width;
+	begin_info->renderArea.extent.height = render_area.height;
 
 	if(clear_values)
 	{
@@ -169,7 +165,7 @@ void VulkanCommands::end_render_pass()
 	vk.CmdEndRenderPass(primary_buffer);
 
 	framebuffer = 0;
-	viewport = 0;
+	viewport = Rect::max();
 	pass_buffer = 0;
 }