[vulkan] Rework quad drawing to use a single pipeline

Any performance gains will be utterly swamped by the deferred renderer,
but it will allow better control of quad render order by any client
code (and should be slightly better for simpler renderers when I get
support for them working).

Right now, plenty is broken (much of the higher level draw functions are
disabled, and pics don't render correctly), but this gets at least the
basics in so I'm not bouncing diffs around as much.

libs/video/renderer/vulkan/pl_quake_def.plist

@@ -121,28 +121,18 @@
 				},
 			);
 		};
-		twod_pool = {
-			flags = 0;
-			maxSets = "$frames.size * 2z";
+		quad_pool = {
+			maxSets = 64;
 			bindings = (
 				{
-					type = combined_image_sampler;
-					descriptorCount = $frames.size;
-				},
-			);
-		};
-		glyph_pool = {
-			maxSets = 16;
-			bindings = (
-				{
-					// glyph geometry data (offset and uv)
+					// quad geometry data (offset and uv)
 					type = uniform_texel_buffer;
-					descriptorCount = 16;
+					descriptorCount = 64;
 				},
 				{
-					// glyph texture data
+					// quad texture data
 					type = combined_image_sampler;
-					descriptorCount = 16;
+					descriptorCount = 64;
 				},
 			);
 		};
@@ -269,17 +259,7 @@
 				},
 			);
 		};
-		twod_set = {
-			bindings = (
-				{
-					binding = 0;
-					descriptorType = combined_image_sampler;
-					descriptorCount = 1;
-					stageFlags = fragment;
-				},
-			);
-		};
-		glyph_data_set = {
+		quad_data_set = {
 			bindings = (
 				{
 					// glyph texture data
@@ -453,11 +433,8 @@
 		};
 	};
 	pipelineLayouts = {
-		twod_layout = {
-			setLayouts = (matrix_set, twod_set);
-		};
-		glyph_layout = {
-			setLayouts = (matrix_set, glyph_data_set);
+		quad_layout = {
+			setLayouts = (matrix_set, quad_data_set);
 		};
 		lines_layout = {
 			setLayouts = (matrix_set);
@@ -1159,30 +1136,6 @@
 			layout = sprite_layout;
 		};
 		twod = {
-			@inherit = $properties.pipelines.trans_base;
-			renderPass = output;
-			subpass = 0;
-			stages = (
-				{
-					stage = vertex;
-					name = main;
-					module = $builtin/twod.vert;
-				},
-				{
-					stage = fragment;
-					name = main;
-					module = $builtin/twod.frag;
-				},
-			);
-			vertexInput   = $properties.vertexInput.twod;
-			inputAssembly = $properties.inputAssembly.twod;
-			rasterization = $properties.rasterization.counter_cw_cull_back;
-			depthStencil  = $properties.depthStencil.disable;
-			colorBlend = {
-				logicOpEnable = false;
-				attachments = ($properties.attachmentBlendOp.alpha_blend);
-			};
-			layout = twod_layout;
 		};
 		slice = {
 			@inherit = $properties.pipelines.trans_base;
@@ -1203,14 +1156,23 @@
 				logicOpEnable = false;
 				attachments = ($properties.attachmentBlendOp.alpha_blend);
 			};
-			layout = glyph_layout;//slices use the same descriptors as glyphs
+			layout = quad_layout;
 		};
 		lines = {
-			@inherit = $properties.pipelines.twod;
+			@inherit = $properties.pipelines.trans_base;
+			renderPass = output;
+			subpass = 0;
 			stages = (
 				{ stage = vertex;   name = main; module = $builtin/line.vert; },
 				{ stage = fragment; name = main; module = $builtin/line.frag; },
 			);
+			vertexInput   = $properties.vertexInput.twod;
+			rasterization = $properties.rasterization.counter_cw_cull_back;
+			depthStencil  = $properties.depthStencil.disable;
+			colorBlend = {
+				logicOpEnable = false;
+				attachments = ($properties.attachmentBlendOp.alpha_blend);
+			};
 			inputAssembly = $properties.inputAssembly.lines;
 			layout = lines_layout;
 		};