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ui: Scale snapshot thumbnail placeholder properly

This commit is contained in:
Matt Borgerson 2023-06-03 22:22:24 -07:00 committed by mborgerson
parent 348b45b436
commit 60a7f55ac4
2 changed files with 24 additions and 23 deletions
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2
ui/xui/gl-helpers.hh
View File

@ -51,4 +51,4 @@ void RenderFramebuffer(GLint tex, int width, int height, bool flip);
void RenderFramebuffer(GLint tex, int width, int height, bool flip, float scale[2]);
bool RenderFramebufferToPng(GLuint tex, bool flip, std::vector<uint8_t> &png, int max_width = 0, int max_height = 0);
void SaveScreenshot(GLuint tex, bool flip);
void ScaleDimensions(int src_width, int src_height, int max_width, int max_height, int *out_width, int *out_height);
void ScaleDimensions(int src_width, int src_height, int max_width, int max_height, int *out_width, int *out_height);

45
ui/xui/main-menu.cc
View File

@ -757,32 +757,33 @@ void MainMenuSnapshotsView::SnapshotBigButton(QEMUSnapshotInfo *snapshot, const
ImGui::SameLine();
ImGui::SetCursorPosX(pos.x + thumbnail_pos.x);
ImGui::SetCursorPosY(pos.y + thumbnail_pos.y);
if (screenshot > 0) {
int thumbnail_width, thumbnail_height;
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, screenshot);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &thumbnail_width);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &thumbnail_height);
int thumbnail_width, thumbnail_height;
// Draw black background behind thumbnail
draw_list->AddRectFilled(ImVec2(p0.x + thumbnail_pos.x, p0.y + thumbnail_pos.y),
ImVec2(p0.x + thumbnail_pos.x + thumbnail_size.x, p0.y + thumbnail_pos.y + thumbnail_size.y),
IM_COL32_BLACK);
// Center the thumbnail
int scaled_width, scaled_height;
ScaleDimensions(thumbnail_width, thumbnail_height, thumbnail_size.x, thumbnail_size.y, &scaled_width, &scaled_height);
ImVec2 img_pos = ImGui::GetCursorPos();
img_pos.x += (thumbnail_size.x - scaled_width) / 2;
img_pos.y += (thumbnail_size.y - scaled_height) / 2;
ImGui::SetCursorPos(img_pos);
ImGui::Image((ImTextureID)(uint64_t)screenshot, ImVec2(scaled_width, scaled_height));
} else {
ImGui::Image((ImTextureID)(uint64_t)g_icon_tex, thumbnail_size);
if (!screenshot) {
screenshot = g_icon_tex;
}
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, screenshot);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &thumbnail_width);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &thumbnail_height);
// Draw black background behind thumbnail
draw_list->AddRectFilled(ImVec2(p0.x + thumbnail_pos.x, p0.y + thumbnail_pos.y),
ImVec2(p0.x + thumbnail_pos.x + thumbnail_size.x, p0.y + thumbnail_pos.y + thumbnail_size.y),
IM_COL32_BLACK);
// Center the thumbnail
int scaled_width, scaled_height;
ScaleDimensions(thumbnail_width, thumbnail_height, thumbnail_size.x, thumbnail_size.y, &scaled_width, &scaled_height);
ImVec2 img_pos = ImGui::GetCursorPos();
img_pos.x += (thumbnail_size.x - scaled_width) / 2;
img_pos.y += (thumbnail_size.y - scaled_height) / 2;
ImGui::SetCursorPos(img_pos);
ImGui::Image((ImTextureID)(uint64_t)screenshot, ImVec2(scaled_width, scaled_height));
draw_list->PushClipRect(p0, p1, true);
// Snapshot title