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refactor color saturate for palette editor

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scawful
2024-05-11 14:32:31 -04:00
parent befec58e19
commit 0593a12267
1 changed files with 28 additions and 25 deletions
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53
src/app/editor/modules/palette_editor.cc
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@@ -8,28 +8,6 @@
#include "app/gui/color.h" #include "app/gui/color.h"
#include "app/gui/icons.h" #include "app/gui/icons.h"
static inline float ImSaturate(float f) {
return (f < 0.0f) ? 0.0f : (f > 1.0f) ? 1.0f : f;
}
#define IM_F32_TO_INT8_SAT(_VAL) \
((int)(ImSaturate(_VAL) * 255.0f + 0.5f)) // Saturated, always output 0..255
int CustomFormatString(char* buf, size_t buf_size, const char* fmt, ...) {
va_list args;
va_start(args, fmt);
#ifdef IMGUI_USE_STB_SPRINTF
int w = stbsp_vsnprintf(buf, (int)buf_size, fmt, args);
#else
int w = vsnprintf(buf, buf_size, fmt, args);
#endif
va_end(args);
if (buf == nullptr) return w;
if (w == -1 || w >= (int)buf_size) w = (int)buf_size - 1;
buf[w] = 0;
return w;
}
namespace yaze { namespace yaze {
namespace app { namespace app {
namespace editor { namespace editor {
@@ -150,6 +128,31 @@ absl::Status PaletteEditor::DrawPaletteGroup(int category) {
return absl::OkStatus(); return absl::OkStatus();
} }
namespace {
int CustomFormatString(char* buf, size_t buf_size, const char* fmt, ...) {
va_list args;
va_start(args, fmt);
#ifdef IMGUI_USE_STB_SPRINTF
int w = stbsp_vsnprintf(buf, (int)buf_size, fmt, args);
#else
int w = vsnprintf(buf, buf_size, fmt, args);
#endif
va_end(args);
if (buf == nullptr) return w;
if (w == -1 || w >= (int)buf_size) w = (int)buf_size - 1;
buf[w] = 0;
return w;
}
static inline float color_saturate(float f) {
return (f < 0.0f) ? 0.0f : (f > 1.0f) ? 1.0f : f;
}
#define F32_TO_INT8_SAT(_VAL) \
((int)(color_saturate(_VAL) * 255.0f + \
0.5f)) // Saturated, always output 0..255
} // namespace
absl::Status PaletteEditor::HandleColorPopup(gfx::SnesPalette& palette, int i, absl::Status PaletteEditor::HandleColorPopup(gfx::SnesPalette& palette, int i,
int j, int n) { int j, int n) {
auto col = gfx::ToFloatArray(palette[n]); auto col = gfx::ToFloatArray(palette[n]);
@@ -159,9 +162,9 @@ absl::Status PaletteEditor::HandleColorPopup(gfx::SnesPalette& palette, int i,
if (ImGui::Button("Copy as..", ImVec2(-1, 0))) ImGui::OpenPopup("Copy"); if (ImGui::Button("Copy as..", ImVec2(-1, 0))) ImGui::OpenPopup("Copy");
if (ImGui::BeginPopup("Copy")) { if (ImGui::BeginPopup("Copy")) {
int cr = IM_F32_TO_INT8_SAT(col[0]); int cr = F32_TO_INT8_SAT(col[0]);
int cg = IM_F32_TO_INT8_SAT(col[1]); int cg = F32_TO_INT8_SAT(col[1]);
int cb = IM_F32_TO_INT8_SAT(col[2]); int cb = F32_TO_INT8_SAT(col[2]);
char buf[64]; char buf[64];
CustomFormatString(buf, IM_ARRAYSIZE(buf), "(%.3ff, %.3ff, %.3ff)", col[0], CustomFormatString(buf, IM_ARRAYSIZE(buf), "(%.3ff, %.3ff, %.3ff)", col[0],