8b804a1903
* [qt] Updating CMake project files for Qt6 * [qt] Updating non-test projects for Qt6 and msvc2019 * [qt] Test fixes for Qt6 and msvc2019 * [qt] Link whole test archive for Qt and msvc2019 * [qt] Fixing Qt6 headless backend renderer * [qt] Fixes for test failures * [qt] Expression and style parser test fixes * [qt] Backwards compatibility with Qt5 and Qt6 Minimum version is Qt 5.4 due to use of QOpenGLWidget * [qt] LLVM is no longer required for a Windows build * [msvc] msvc2019 fixes for maplibre * Update test/storage/offline_database.test.cpp Co-authored-by: Tadej Novak <tadej@tano.si> * Vector + const is not standard C++ Co-authored-by: Tadej Novak <tadej@tano.si>
78 lines
2.2 KiB
C++
78 lines
2.2 KiB
C++
#include <mbgl/gl/offscreen_texture.hpp>
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#include <mbgl/gl/renderable_resource.hpp>
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#include <mbgl/gl/context.hpp>
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#include <mbgl/gl/framebuffer.hpp>
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namespace mbgl {
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namespace gl {
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class OffscreenTextureResource final : public gl::RenderableResource {
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public:
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OffscreenTextureResource(gl::Context& context_,
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const Size size_,
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const gfx::TextureChannelDataType type_)
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: context(context_), size(size_), type(type_) {
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assert(!size.isEmpty());
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}
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~OffscreenTextureResource() noexcept override = default;
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void bind() override {
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if (!framebuffer) {
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assert(!texture);
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texture = context.createTexture(size, gfx::TexturePixelType::RGBA, type);
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framebuffer = context.createFramebuffer(*texture);
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} else {
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context.bindFramebuffer = framebuffer->framebuffer;
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}
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context.activeTextureUnit = 0;
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context.scissorTest = false;
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context.viewport = { 0, 0, size };
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}
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PremultipliedImage readStillImage() {
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assert(framebuffer);
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context.bindFramebuffer = framebuffer->framebuffer;
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return context.readFramebuffer<PremultipliedImage>(size);
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}
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gfx::Texture& getTexture() {
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assert(texture);
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return *texture;
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}
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private:
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gl::Context& context;
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const Size size;
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optional<gfx::Texture> texture;
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const gfx::TextureChannelDataType type;
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optional<gl::Framebuffer> framebuffer;
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};
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OffscreenTexture::OffscreenTexture(gl::Context& context,
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const Size size_,
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const gfx::TextureChannelDataType type)
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: gfx::OffscreenTexture(size, std::make_unique<OffscreenTextureResource>(context, size_, type)) {
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}
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bool OffscreenTexture::isRenderable() {
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try {
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getResource<OffscreenTextureResource>().bind();
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return true;
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} catch (const std::runtime_error& ex) {
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return false;
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}
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}
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PremultipliedImage OffscreenTexture::readStillImage() {
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return getResource<OffscreenTextureResource>().readStillImage();
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}
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gfx::Texture& OffscreenTexture::getTexture() {
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return getResource<OffscreenTextureResource>().getTexture();
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}
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} // namespace gl
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} // namespace mbgl
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