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Clamp HDR colors to the SDR range for SDR renderers

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This commit is contained in:
Sam Lantinga
2024-02-02 12:18:32 -08:00
parent 9591b2cfb4
commit aa8f609ff3
3 changed files with 44 additions and 44 deletions
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40
src/render/software/SDL_render_sw.c
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@@ -107,10 +107,10 @@ static int SW_CreateTexture(SDL_Renderer *renderer, SDL_Texture *texture, SDL_Pr
return SDL_SetError("Cannot create surface");
}
texture->driverdata = surface;
r = (Uint8)SDL_roundf(texture->color.r * 255.0f);
g = (Uint8)SDL_roundf(texture->color.g * 255.0f);
b = (Uint8)SDL_roundf(texture->color.b * 255.0f);
a = (Uint8)SDL_roundf(texture->color.a * 255.0f);
r = (Uint8)SDL_roundf(SDL_clamp(texture->color.r, 0.0f, 1.0f) * 255.0f);
g = (Uint8)SDL_roundf(SDL_clamp(texture->color.g, 0.0f, 1.0f) * 255.0f);
b = (Uint8)SDL_roundf(SDL_clamp(texture->color.b, 0.0f, 1.0f) * 255.0f);
a = (Uint8)SDL_roundf(SDL_clamp(texture->color.a, 0.0f, 1.0f) * 255.0f);
SDL_SetSurfaceColorMod(texture->driverdata, r, g, b);
SDL_SetSurfaceAlphaMod(texture->driverdata, a);
SDL_SetSurfaceBlendMode(texture->driverdata, texture->blendMode);
@@ -583,10 +583,10 @@ static int SW_QueueGeometry(SDL_Renderer *renderer, SDL_RenderCommand *cmd, SDL_
ptr->dst.y = (int)(xy_[1] * scale_y);
trianglepoint_2_fixedpoint(&ptr->dst);
ptr->color.r = (Uint8)SDL_roundf(col_.r * 255.0f);
ptr->color.g = (Uint8)SDL_roundf(col_.g * 255.0f);
ptr->color.b = (Uint8)SDL_roundf(col_.b * 255.0f);
ptr->color.a = (Uint8)SDL_roundf(col_.a * 255.0f);
ptr->color.r = (Uint8)SDL_roundf(SDL_clamp(col_.r, 0.0f, 1.0f) * 255.0f);
ptr->color.g = (Uint8)SDL_roundf(SDL_clamp(col_.g, 0.0f, 1.0f) * 255.0f);
ptr->color.b = (Uint8)SDL_roundf(SDL_clamp(col_.b, 0.0f, 1.0f) * 255.0f);
ptr->color.a = (Uint8)SDL_roundf(SDL_clamp(col_.a, 0.0f, 1.0f) * 255.0f);
ptr++;
}
@@ -614,10 +614,10 @@ static int SW_QueueGeometry(SDL_Renderer *renderer, SDL_RenderCommand *cmd, SDL_
ptr->dst.y = (int)(xy_[1] * scale_y);
trianglepoint_2_fixedpoint(&ptr->dst);
ptr->color.r = (Uint8)SDL_roundf(col_.r * 255.0f);
ptr->color.g = (Uint8)SDL_roundf(col_.g * 255.0f);
ptr->color.b = (Uint8)SDL_roundf(col_.b * 255.0f);
ptr->color.a = (Uint8)SDL_roundf(col_.a * 255.0f);
ptr->color.r = (Uint8)SDL_roundf(SDL_clamp(col_.r, 0.0f, 1.0f) * 255.0f);
ptr->color.g = (Uint8)SDL_roundf(SDL_clamp(col_.g, 0.0f, 1.0f) * 255.0f);
ptr->color.b = (Uint8)SDL_roundf(SDL_clamp(col_.b, 0.0f, 1.0f) * 255.0f);
ptr->color.a = (Uint8)SDL_roundf(SDL_clamp(col_.a, 0.0f, 1.0f) * 255.0f);
ptr++;
}
@@ -697,10 +697,10 @@ static int SW_RunCommandQueue(SDL_Renderer *renderer, SDL_RenderCommand *cmd, vo
switch (cmd->command) {
case SDL_RENDERCMD_SETDRAWCOLOR:
{
drawstate.color.r = (Uint8)SDL_roundf(cmd->data.color.color.r * 255.0f);
drawstate.color.g = (Uint8)SDL_roundf(cmd->data.color.color.g * 255.0f);
drawstate.color.b = (Uint8)SDL_roundf(cmd->data.color.color.b * 255.0f);
drawstate.color.a = (Uint8)SDL_roundf(cmd->data.color.color.a * 255.0f);
drawstate.color.r = (Uint8)SDL_roundf(SDL_clamp(cmd->data.color.color.r, 0.0f, 1.0f) * 255.0f);
drawstate.color.g = (Uint8)SDL_roundf(SDL_clamp(cmd->data.color.color.g, 0.0f, 1.0f) * 255.0f);
drawstate.color.b = (Uint8)SDL_roundf(SDL_clamp(cmd->data.color.color.b, 0.0f, 1.0f) * 255.0f);
drawstate.color.a = (Uint8)SDL_roundf(SDL_clamp(cmd->data.color.color.a, 0.0f, 1.0f) * 255.0f);
break;
}
@@ -720,10 +720,10 @@ static int SW_RunCommandQueue(SDL_Renderer *renderer, SDL_RenderCommand *cmd, vo
case SDL_RENDERCMD_CLEAR:
{
const Uint8 r = (Uint8)SDL_roundf(cmd->data.color.color.r * 255.0f);
const Uint8 g = (Uint8)SDL_roundf(cmd->data.color.color.g * 255.0f);
const Uint8 b = (Uint8)SDL_roundf(cmd->data.color.color.b * 255.0f);
const Uint8 a = (Uint8)SDL_roundf(cmd->data.color.color.a * 255.0f);
const Uint8 r = (Uint8)SDL_roundf(SDL_clamp(cmd->data.color.color.r, 0.0f, 1.0f) * 255.0f);
const Uint8 g = (Uint8)SDL_roundf(SDL_clamp(cmd->data.color.color.g, 0.0f, 1.0f) * 255.0f);
const Uint8 b = (Uint8)SDL_roundf(SDL_clamp(cmd->data.color.color.b, 0.0f, 1.0f) * 255.0f);
const Uint8 a = (Uint8)SDL_roundf(SDL_clamp(cmd->data.color.color.a, 0.0f, 1.0f) * 255.0f);
/* By definition the clear ignores the clip rect */
SDL_SetSurfaceClipRect(surface, NULL);
SDL_FillSurfaceRect(surface, NULL, SDL_MapRGBA(surface->format, r, g, b, a));