diff --git a/internal/graphics/vertex.go b/internal/graphics/vertex.go
index 6efa85e2e..133653f03 100644
--- a/internal/graphics/vertex.go
+++ b/internal/graphics/vertex.go
@@ -36,6 +36,13 @@ const (
 		2*ShaderSrcImageCount + // the source image region origins array
 		2*ShaderSrcImageCount + // the source image region sizes array
 		16 // the projection matrix
+
+	ProjectionMatrixUniformDwordIndex = 2 +
+		2*ShaderSrcImageCount +
+		2 +
+		2 +
+		2*ShaderSrcImageCount +
+		2*ShaderSrcImageCount
 )
 
 const (
diff --git a/internal/graphicsdriver/playstation5/graphics_playstation5.go b/internal/graphicsdriver/playstation5/graphics_playstation5.go
index fa56df3f1..918f007a2 100644
--- a/internal/graphicsdriver/playstation5/graphics_playstation5.go
+++ b/internal/graphicsdriver/playstation5/graphics_playstation5.go
@@ -30,6 +30,11 @@ import (
 	"github.com/hajimehoshi/ebiten/v2/internal/shaderir"
 )
 
+//export ebitengine_ProjectionMatrixUniformDwordIndex
+func ebitengine_ProjectionMatrixUniformDwordIndex() C.int {
+	return C.int(graphics.ProjectionMatrixUniformDwordIndex)
+}
+
 type playstation5Error struct {
 	name    string
 	code    int
diff --git a/internal/graphicsdriver/playstation5/graphics_playstation5.h b/internal/graphicsdriver/playstation5/graphics_playstation5.h
index 8df55e831..7e77f7b7a 100644
--- a/internal/graphicsdriver/playstation5/graphics_playstation5.h
+++ b/internal/graphicsdriver/playstation5/graphics_playstation5.h
@@ -25,6 +25,8 @@
 extern "C" {
 #endif
 
+int ebitengine_ProjectionMatrixUniformDwordIndex();
+
 typedef struct ebitengine_Error {
   const char *message;
   int code;
@@ -52,23 +54,27 @@ typedef struct ebitengine_DstRegion {
 // kBlendFactor* and kBlendOperation* must be synced with
 // internal/graphicsdriver/blend.go.
 
-const uint8_t kBlendFactorZero = 0;
-const uint8_t kBlendFactorOne = 1;
-const uint8_t kBlendFactorSourceColor = 2;
-const uint8_t kBlendFactorOneMinusSourceColor = 3;
-const uint8_t kBlendFactorSourceAlpha = 4;
-const uint8_t kBlendFactorOneMinusSourceAlpha = 5;
-const uint8_t kBlendFactorDestinationColor = 6;
-const uint8_t kBlendFactorOneMinusDestinationColor = 7;
-const uint8_t kBlendFactorDestinationAlpha = 8;
-const uint8_t kBlendFactorOneMinusDestinationAlpha = 9;
-const uint8_t kBlendFactorSourceAlphaSaturated = 10;
+enum {
+  kBlendFactorZero = 0,
+  kBlendFactorOne = 1,
+  kBlendFactorSourceColor = 2,
+  kBlendFactorOneMinusSourceColor = 3,
+  kBlendFactorSourceAlpha = 4,
+  kBlendFactorOneMinusSourceAlpha = 5,
+  kBlendFactorDestinationColor = 6,
+  kBlendFactorOneMinusDestinationColor = 7,
+  kBlendFactorDestinationAlpha = 8,
+  kBlendFactorOneMinusDestinationAlpha = 9,
+  kBlendFactorSourceAlphaSaturated = 10,
+};
 
-const uint8_t kBlendOperationAdd = 0;
-const uint8_t kBlendOperationSubtract = 1;
-const uint8_t kBlendOperationReverseSubtract = 2;
-const uint8_t kBlendOperationMin = 3;
-const uint8_t kBlendOperationMax = 4;
+enum {
+  kBlendOperationAdd = 0,
+  kBlendOperationSubtract = 1,
+  kBlendOperationReverseSubtract = 2,
+  kBlendOperationMin = 3,
+  kBlendOperationMax = 4,
+};
 
 typedef struct ebitengine_Blend {
   uint8_t factor_src_rgb;