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Textures: extract ImTextureDataUpdateNewFrame() out of ImFontAtlasUpdateNewFrame(). (#8465)

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This commit is contained in:
ocornut
2026-05-15 16:38:45 +02:00
parent db161b84c9
commit 068e055510
2 changed files with 47 additions and 38 deletions
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imgui_draw.cpp
+19 -12
View File
@@ -2817,7 +2817,25 @@ void ImFontAtlasUpdateNewFrame(ImFontAtlas* atlas, int frame_count, bool rendere
// Update texture status
for (int tex_n = 0; tex_n < atlas->TexList.Size; tex_n++)
{
// Update and remove if requested
ImTextureData* tex = atlas->TexList[tex_n];
if (tex->Status == ImTextureStatus_WantCreate && atlas->RendererHasTextures)
IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == NULL && "Backend set texture's TexID/BackendUserData but did not update Status to OK.");
bool remove_from_list = ImTextureDataUpdateNewFrame(tex);
if (remove_from_list)
{
IM_ASSERT(atlas->TexData != tex);
tex->DestroyPixels();
IM_DELETE(tex);
atlas->TexList.erase(atlas->TexList.begin() + tex_n);
tex_n--;
}
}
}
bool ImTextureDataUpdateNewFrame(ImTextureData* tex)
{
bool remove_from_list = false;
if (tex->Status == ImTextureStatus_OK)
{
@@ -2825,8 +2843,6 @@ void ImFontAtlasUpdateNewFrame(ImFontAtlas* atlas, int frame_count, bool rendere
tex->UpdateRect.x = tex->UpdateRect.y = (unsigned short)~0;
tex->UpdateRect.w = tex->UpdateRect.h = 0;
}
if (tex->Status == ImTextureStatus_WantCreate && atlas->RendererHasTextures)
IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == NULL && "Backend set texture's TexID/BackendUserData but did not update Status to OK.");
// Request destroy
// - Keep bool to true in order to differentiate a planned destroy vs a destroy decided by the backend.
@@ -2858,16 +2874,7 @@ void ImFontAtlasUpdateNewFrame(ImFontAtlas* atlas, int frame_count, bool rendere
if (tex->Status == ImTextureStatus_WantDestroy)
tex->UnusedFrames++;
// Destroy and remove
if (remove_from_list)
{
IM_ASSERT(atlas->TexData != tex);
tex->DestroyPixels();
IM_DELETE(tex);
atlas->TexList.erase(atlas->TexList.begin() + tex_n);
tex_n--;
}
}
return remove_from_list;
}
void ImFontAtlasTextureBlockConvert(const unsigned char* src_pixels, ImTextureFormat src_fmt, int src_pitch, unsigned char* dst_pixels, ImTextureFormat dst_fmt, int dst_pitch, int w, int h)
imgui_internal.h
+2
View File
@@ -1702,6 +1702,7 @@ enum ImGuiActivateFlags_
};
// Early work-in-progress API for ScrollToItem()
// FIXME: Missing flags to request making both edges visible when possible.
enum ImGuiScrollFlags_
{
ImGuiScrollFlags_None = 0,
@@ -3979,6 +3980,7 @@ IMGUI_API void ImFontAtlasTextureBlockFill(ImTextureData* dst_tex,
IMGUI_API void ImFontAtlasTextureBlockCopy(ImTextureData* src_tex, int src_x, int src_y, ImTextureData* dst_tex, int dst_x, int dst_y, int w, int h);
IMGUI_API void ImFontAtlasTextureBlockQueueUpload(ImFontAtlas* atlas, ImTextureData* tex, int x, int y, int w, int h);
IMGUI_API bool ImTextureDataUpdateNewFrame(ImTextureData* tex);
IMGUI_API void ImTextureDataQueueUpload(ImTextureData* tex, int x, int y, int w, int h);
IMGUI_API int ImTextureDataGetFormatBytesPerPixel(ImTextureFormat format);
IMGUI_API const char* ImTextureDataGetStatusName(ImTextureStatus status);