From 48a83d69cc7c78674423b7c6901c6390dc2ce740 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Sun, 12 Oct 2025 09:16:37 -0700
Subject: [PATCH] Corrected texture colors on PS2 (thanks @Trinth!)
Fixes https://github.com/libsdl-org/SDL/issues/12395
(cherry picked from commit 1ed093ad8b565c09d142056a2d4a7d0df54109e6)
---
src/render/ps2/SDL_render_ps2.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/src/render/ps2/SDL_render_ps2.c b/src/render/ps2/SDL_render_ps2.c
index f414fbd0cdf95..76d8cccb30bbd 100644
--- a/src/render/ps2/SDL_render_ps2.c
+++ b/src/render/ps2/SDL_render_ps2.c
@@ -113,6 +113,16 @@ static gs_rgbaq float_color_to_RGBAQ(const SDL_FColor *color, float color_scale)
return color_to_RGBAQ(colorR, colorG, colorB, colorA, 0x00);
}
+static gs_rgbaq float_color_to_RGBAQ_tex(const SDL_FColor *color, float color_scale)
+{
+ uint8_t colorR = (uint8_t)SDL_roundf(SDL_clamp(color->r * color_scale, 0.0f, 1.0f) * 127.0f);
+ uint8_t colorG = (uint8_t)SDL_roundf(SDL_clamp(color->g * color_scale, 0.0f, 1.0f) * 127.0f);
+ uint8_t colorB = (uint8_t)SDL_roundf(SDL_clamp(color->b * color_scale, 0.0f, 1.0f) * 127.0f);
+ uint8_t colorA = (uint8_t)SDL_roundf(SDL_clamp(color->a, 0.0f, 1.0f) * 63.0f);
+
+ return color_to_RGBAQ(colorR, colorG, colorB, colorA, 0x00);
+}
+
static uint64_t float_GS_SETREG_RGBAQ(const SDL_FColor *color, float color_scale)
{
uint8_t colorR = (uint8_t)SDL_roundf(SDL_clamp(color->r * color_scale, 0.0f, 1.0f) * 255.0f);
@@ -281,7 +291,7 @@ static bool PS2_QueueGeometry(SDL_Renderer *renderer, SDL_RenderCommand *cmd, SD
uv_ = (float *)((char *)uv + j * uv_stride);
vertices->xyz2 = vertex_to_XYZ2(data->gsGlobal, xy_[0] * scale_x, xy_[1] * scale_y, 0);
- vertices->rgbaq = float_color_to_RGBAQ(col_, color_scale);
+ vertices->rgbaq = float_color_to_RGBAQ_tex(col_, color_scale);
vertices->uv = vertex_to_UV(ps2_tex, uv_[0] * ps2_tex->Width, uv_[1] * ps2_tex->Height);
vertices++;