Vulkan: Use one triangle for full-screen utils

In tiling GPUs, using two triangles means the tiles intersecting the
seam would be processed twice.

Bug: angleproject:4936
Change-Id: Ib10b77e6ab15bba932f0e4e970e10ed5a8399cdd
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2372623
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

scripts/code_generation_hashes/Vulkan_internal_shader_programs.json

@@ -92,7 +92,7 @@
   "src/libANGLE/renderer/vulkan/shaders/gen/ConvertVertex.comp.00000008.inc":
     "680d2865d4350c8f36fbbdaec1b43682",
   "src/libANGLE/renderer/vulkan/shaders/gen/FullScreenQuad.vert.00000000.inc":
-    "3a4ab796f02d3f1c306c92f7da2c68ee",
+    "a6f06ce133d1342fafed89305dd99bdd",
   "src/libANGLE/renderer/vulkan/shaders/gen/GenerateMipmap.comp.00000000.inc":
     "4e2e1e59d32aed39be0f0ae9d6c71353",
   "src/libANGLE/renderer/vulkan/shaders/gen/GenerateMipmap.comp.00000001.inc":
@@ -256,7 +256,7 @@
   "src/libANGLE/renderer/vulkan/shaders/src/ConvertVertex.comp.json":
     "f2abd98463e46c0af45e8a1a5e5af88f",
   "src/libANGLE/renderer/vulkan/shaders/src/FullScreenQuad.vert":
-    "805ec8b2f87d4bd4242dc5b1c58ba3b4",
+    "fd6d015b20709364c90ff41fb687ed0f",
   "src/libANGLE/renderer/vulkan/shaders/src/GenerateMipmap.comp":
     "ec72e3ce787ca499c684eaa7c96bcc74",
   "src/libANGLE/renderer/vulkan/shaders/src/GenerateMipmap.comp.json":

src/libANGLE/renderer/vulkan/UtilsVk.cpp

@@ -1400,7 +1400,7 @@ angle::Result UtilsVk::clearFramebuffer(ContextVk *contextVk,
 
     // Make sure this draw call doesn't count towards occlusion query results.
     ANGLE_TRY(contextVk->pauseOcclusionQueryIfActive());
-    commandBuffer->draw(6, 0);
+    commandBuffer->draw(3, 0);
     return contextVk->resumeOcclusionQueryIfActive();
 }
 
@@ -1669,7 +1669,7 @@ angle::Result UtilsVk::blitResolveImpl(ContextVk *contextVk,
 
     // Note: this utility starts the render pass directly, thus bypassing
     // ContextVk::startRenderPass. As such, occlusion queries are not enabled.
-    commandBuffer->draw(6, 0);
+    commandBuffer->draw(3, 0);
 
     descriptorPoolBinding.reset();
 
@@ -2053,7 +2053,7 @@ angle::Result UtilsVk::copyImage(ContextVk *contextVk,
 
     // Note: this utility creates its own framebuffer, thus bypassing ContextVk::startRenderPass.
     // As such, occlusion queries are not enabled.
-    commandBuffer->draw(6, 0);
+    commandBuffer->draw(3, 0);
 
     descriptorPoolBinding.reset();
 
@@ -2228,7 +2228,7 @@ angle::Result UtilsVk::unresolve(ContextVk *contextVk,
 
     // This draw call is made before ContextVk gets a chance to start the occlusion query.  As such,
     // occlusion queries are not enabled.
-    commandBuffer->draw(6, 0);
+    commandBuffer->draw(3, 0);
     return angle::Result::Continue;
 }
 

src/libANGLE/renderer/vulkan/shaders/gen/FullScreenQuad.vert.00000000.inc

@@ -10,30 +10,30 @@
 
 #pragma once
 constexpr uint8_t kFullScreenQuad_vert_00000000[] = {
-    0x1f,0x8b,0x08,0x00,0x00,0x00,0x00,0x00,0x02,0xff,0x4d,0x92,0x4d,0x4e,0xc3,0x40,
-    0x0c,0x85,0x9d,0x84,0xa6,0x6d,0xa0,0x69,0xfa,0x97,0x96,0xfe,0xa4,0x2d,0x2d,0x14,
-    0x01,0xaa,0x58,0x00,0x42,0x42,0x05,0xb1,0x0a,0x8b,0x2e,0x40,0x9c,0x00,0x89,0x0d,
-    0x0b,0xd8,0xc0,0x01,0xb8,0x19,0xd7,0x62,0x83,0xc4,0xf3,0xcc,0x1b,0x69,0x46,0x72,
-    0x66,0xfc,0xf9,0xc5,0xf6,0x38,0x89,0xc2,0x45,0x55,0x24,0x90,0x44,0x6a,0x72,0x2c,
-    0x76,0xb5,0x24,0x04,0x11,0xd9,0x95,0xd8,0xec,0xe5,0xf6,0x79,0xbb,0xfe,0xfc,0x7a,
-    0x5d,0x5f,0x5c,0x9e,0x6b,0x3c,0x95,0xc8,0xe8,0x34,0xd6,0x94,0xaa,0x39,0xef,0xc0,
-    0xde,0x5f,0xde,0x3e,0xf4,0xdc,0x80,0x8d,0x60,0x0f,0x52,0x41,0x0e,0xbb,0xdc,0xee,
-    0x58,0x40,0x16,0x78,0x2c,0x24,0x8b,0x3c,0x16,0x91,0x69,0xfe,0x12,0x9e,0xd3,0x95,
-    0x20,0x23,0xc6,0x4e,0x60,0x1d,0x50,0xe5,0x73,0x68,0x22,0x6a,0x72,0x9c,0x62,0xec,
-    0x33,0x58,0x1f,0x7a,0xed,0x34,0x66,0xae,0x1e,0x9e,0x35,0xc6,0x74,0x9d,0xd2,0xaf,
-    0xb3,0xa7,0x31,0xfc,0x84,0x7a,0x65,0x05,0x4e,0x5a,0xcb,0xe5,0x48,0x68,0x33,0xe8,
-    0xf6,0xbc,0x3e,0x6f,0xe8,0x37,0xc8,0xb4,0x4e,0xca,0x3a,0x01,0xeb,0xa4,0x66,0x6e,
-    0x76,0x69,0x5f,0x19,0x73,0x86,0x5e,0x1f,0x2d,0x32,0xed,0xa3,0x8d,0x3d,0x23,0xd3,
-    0x78,0x6c,0xee,0xab,0xeb,0xfb,0xc7,0xf9,0x5d,0xeb,0xdf,0x9d,0x61,0x6e,0x99,0xa9,
-    0x6b,0x35,0xca,0x1d,0xcb,0xc9,0x3a,0x1e,0xeb,0x53,0xe3,0xb3,0x01,0x99,0x7d,0xb7,
-    0x6e,0xea,0xef,0x33,0x67,0xce,0x77,0x7a,0xdc,0x07,0x9c,0xc1,0x90,0xf7,0x4b,0x39,
-    0x83,0x21,0xff,0x81,0x80,0xf1,0x09,0x67,0xd7,0xa6,0x3f,0xa5,0x9f,0x79,0x77,0x3a,
-    0xe0,0x4c,0x34,0x7e,0xc4,0xf9,0xa9,0xe6,0x0a,0x7d,0x85,0xfc,0x6e,0x42,0xfe,0x0b,
-    0x52,0x61,0xad,0x89,0xf9,0x3e,0x56,0xbb,0xe1,0x7c,0xc7,0xac,0x7f,0x0b,0x75,0xc1,
-    0xfe,0xef,0xf1,0xc6,0x94,0xdf,0xa2,0xa0,0x66,0xc3,0xf9,0xcf,0xc9,0x9f,0xa0,0xd1,
-    0x5e,0x16,0x64,0xe2,0xb1,0x25,0x99,0xde,0xe9,0x11,0xd5,0xb4,0xde,0x21,0xb5,0x4b,
-    0xf6,0xdf,0x65,0x1d,0xed,0x7f,0xc5,0xff,0xa0,0xc9,0x3e,0x56,0xd4,0xff,0x21,0xc3,
-    0x35,0xec,0x1f,0xe9,0x55,0x31,0x1f,0x7c,0x03,0x00,0x00
+    0x1f,0x8b,0x08,0x00,0x00,0x00,0x00,0x00,0x02,0xff,0x4d,0x52,0xcb,0x4e,0x02,0x41,
+    0x10,0xec,0xdd,0x95,0x05,0x51,0x96,0x05,0x04,0xe4,0x29,0x2f,0xc5,0xa8,0x21,0x1e,
+    0xd4,0x98,0x18,0x15,0x4f,0x78,0xe0,0xa0,0xf1,0x0b,0x4c,0xb8,0x78,0xd0,0x8b,0x7e,
+    0x80,0x7f,0xe6,0x6f,0x79,0x31,0xb1,0x6a,0xb6,0x36,0x99,0x49,0x7a,0x67,0xba,0xba,
+    0xa6,0xbb,0x7a,0x7a,0xa3,0x70,0x5a,0x34,0x0b,0xac,0x6c,0x25,0x3b,0xb6,0x6c,0xd5,
+    0x2c,0x04,0x62,0xb6,0x63,0xb1,0xdb,0x57,0xeb,0x97,0xf5,0xe2,0xf3,0x6b,0xb3,0xb8,
+    0xb8,0x3c,0x67,0x3c,0xb1,0xc8,0xf1,0x18,0xab,0x5a,0xd1,0x9d,0xb7,0x60,0xef,0xaf,
+    0x6f,0x1f,0x3c,0x57,0x60,0x5d,0xd8,0xa3,0x15,0x90,0x23,0x5b,0xf9,0x9e,0x63,0x81,
+    0xb0,0xc0,0xc3,0x42,0x61,0x91,0x87,0x45,0xc2,0x98,0x7f,0x05,0x2f,0xe7,0xad,0x80,
+    0x74,0x15,0x3b,0x81,0x35,0x80,0x12,0x1f,0x83,0x13,0x89,0xd3,0xc2,0x29,0xc6,0x3e,
+    0x82,0xb5,0xc1,0xa7,0xd2,0x58,0xb9,0x9a,0xf8,0x96,0x14,0xe3,0x3a,0x95,0xbf,0x2d,
+    0x4d,0x7d,0xf8,0x65,0xf1,0x89,0x0d,0x71,0x62,0xad,0x3c,0x47,0x59,0x36,0x02,0x6f,
+    0xd7,0xd3,0x79,0x23,0xbf,0x22,0x8c,0x75,0x12,0xd5,0x09,0x54,0x27,0x71,0xef,0x96,
+    0x2d,0xea,0x4a,0x95,0x33,0xf4,0x74,0xd4,0x74,0x9f,0x3a,0xea,0xd8,0x53,0x61,0x8c,
+    0xc7,0xae,0x5f,0xae,0xef,0x9f,0x33,0xbc,0x13,0x63,0x7b,0xc2,0x1a,0x1e,0xa7,0xe9,
+    0x38,0xcb,0x65,0xce,0x69,0x09,0x23,0x27,0xc7,0xda,0xf2,0x9b,0x0e,0x8b,0x5d,0xad,
+    0x7d,0xe5,0x6b,0x29,0xce,0x1e,0x3b,0xd2,0x9f,0xa8,0xc7,0x8e,0x66,0x1c,0x28,0xde,
+    0xd7,0xdb,0xd4,0xe5,0x0f,0xe5,0xa7,0x9e,0x9e,0xb1,0xf7,0xd6,0xf4,0x27,0x59,0x0f,
+    0xf7,0xe4,0x1f,0xa9,0x5f,0xde,0xb9,0x82,0xb6,0x50,0x73,0x32,0xe1,0xbf,0x40,0x0a,
+    0xaa,0xcd,0x5a,0x03,0x71,0x6f,0xf5,0x9e,0x3d,0xe9,0xb9,0x03,0x7b,0xa0,0x1e,0x1e,
+    0x70,0x83,0x3a,0x0e,0xc4,0xef,0x89,0x9f,0x6a,0x1e,0xc4,0x9f,0xc1,0xa1,0x96,0xa9,
+    0xf7,0x2f,0xe4,0xd8,0xcc,0x9b,0xdb,0x13,0xaa,0xb1,0xde,0xa1,0xb8,0x33,0xf5,0x33,
+    0x51,0x1d,0xea,0x9f,0x6b,0xee,0x55,0xe9,0x98,0x8b,0xff,0x87,0x0c,0xd7,0xb0,0x7f,
+    0x5f,0x76,0x90,0xde,0x6c,0x03,0x00,0x00
 };
 
 // Generated from:
@@ -41,12 +41,9 @@ constexpr uint8_t kFullScreenQuad_vert_00000000[] = {
 // #version 450 core
 //
 // const vec2 kQuadVertices[]= {
-//     vec2(- 1, 1),
 //     vec2(- 1, - 1),
-//     vec2(1, - 1),
-//     vec2(- 1, 1),
-//     vec2(1, - 1),
-//     vec2(1, 1),
+//     vec2(3, - 1),
+//     vec2(- 1, 3),
 // };
 //
 // void main()

src/libANGLE/renderer/vulkan/shaders/src/FullScreenQuad.vert

@@ -8,12 +8,9 @@
 #version 450 core
 
 const vec2 kQuadVertices[] = {
-    vec2(-1, 1),
     vec2(-1, -1),
-    vec2(1, -1),
-    vec2(-1, 1),
-    vec2(1, -1),
-    vec2(1, 1),
+    vec2(3, -1),
+    vec2(-1, 3),
 };
 
 void main()