//
// Note that this also contains the tests for some of the simpler effects.
-#include <GL/glew.h>
+#include <locale>
+#include <sstream>
+#include <string>
+
+#include <epoxy/gl.h>
#include <assert.h>
#include "effect.h"
#include "effect_chain.h"
#include "flat_input.h"
#include "gtest/gtest.h"
+#include "init.h"
#include "input.h"
#include "mirror_effect.h"
+#include "multiply_effect.h"
#include "resize_effect.h"
#include "test_util.h"
#include "util.h"
+using namespace std;
+
+namespace movit {
+
TEST(EffectChainTest, EmptyChain) {
float data[] = {
0.0f, 0.25f, 0.3f,
class IdentityEffect : public Effect {
public:
IdentityEffect() {}
- virtual std::string effect_type_id() const { return "IdentityEffect"; }
- std::string output_fragment_shader() { return read_file("identity.frag"); }
+ virtual string effect_type_id() const { return "IdentityEffect"; }
+ string output_fragment_shader() { return read_file("identity.frag"); }
};
TEST(EffectChainTest, Identity) {
class BouncingIdentityEffect : public Effect {
public:
BouncingIdentityEffect() {}
- virtual std::string effect_type_id() const { return "IdentityEffect"; }
- std::string output_fragment_shader() { return read_file("identity.frag"); }
+ virtual string effect_type_id() const { return "IdentityEffect"; }
+ string output_fragment_shader() { return read_file("identity.frag"); }
bool needs_texture_bounce() const { return true; }
AlphaHandling alpha_handling() const { return DONT_CARE_ALPHA_TYPE; }
};
class InvertEffect : public Effect {
public:
InvertEffect() {}
- virtual std::string effect_type_id() const { return "InvertEffect"; }
- std::string output_fragment_shader() { return read_file("invert_effect.frag"); }
+ virtual string effect_type_id() const { return "InvertEffect"; }
+ string output_fragment_shader() { return read_file("invert_effect.frag"); }
// A real invert would actually care about its alpha,
// but in this unit test, it only complicates things.
class RewritingEffect : public Effect {
public:
RewritingEffect() : effect(new T()), replaced_node(NULL) {}
- virtual std::string effect_type_id() const { return "RewritingEffect[" + effect->effect_type_id() + "]"; }
- std::string output_fragment_shader() { EXPECT_TRUE(false); return read_file("identity.frag"); }
+ virtual string effect_type_id() const { return "RewritingEffect[" + effect->effect_type_id() + "]"; }
+ string output_fragment_shader() { EXPECT_TRUE(false); return read_file("identity.frag"); }
virtual void rewrite_graph(EffectChain *graph, Node *self) {
replaced_node = graph->add_node(effect);
graph->replace_receiver(self, replaced_node);
TEST(EffectChainTest, RewritingWorksAndTexturesAreAskedForsRGB) {
unsigned char data[] = {
- 0, 64,
- 128, 255,
+ 0, 0, 0, 255,
+ 64, 64, 64, 255,
+ 128, 128, 128, 255,
+ 255, 255, 255, 255,
};
- float expected_data[4] = {
- 1.0f, 0.9771f,
- 0.8983f, 0.0f,
+ float expected_data[] = {
+ 1.0000f, 1.0000f, 1.0000f, 1.0000f,
+ 0.9771f, 0.9771f, 0.9771f, 1.0000f,
+ 0.8983f, 0.8983f, 0.8983f, 1.0000f,
+ 0.0000f, 0.0000f, 0.0000f, 1.0000f
};
- float out_data[4];
- EffectChainTester tester(NULL, 2, 2);
- tester.add_input(data, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_sRGB);
+ float out_data[4 * 4];
+ EffectChainTester tester(NULL, 1, 4);
+ tester.add_input(data, FORMAT_RGBA_POSTMULTIPLIED_ALPHA, COLORSPACE_sRGB, GAMMA_sRGB);
RewritingEffect<InvertEffect> *effect = new RewritingEffect<InvertEffect>();
tester.get_chain()->add_effect(effect);
- tester.run(out_data, GL_RED, COLORSPACE_sRGB, GAMMA_sRGB);
+ tester.run(out_data, GL_RGBA, COLORSPACE_sRGB, GAMMA_sRGB);
Node *node = effect->replaced_node;
ASSERT_EQ(1, node->incoming_links.size());
EXPECT_EQ("FlatInput", node->incoming_links[0]->effect->effect_type_id());
EXPECT_EQ("GammaCompressionEffect", node->outgoing_links[0]->effect->effect_type_id());
- expect_equal(expected_data, out_data, 2, 2);
+ expect_equal(expected_data, out_data, 4, 4);
}
TEST(EffectChainTest, RewritingWorksAndColorspaceConversionsAreInserted) {
: FlatInput(format, pixel_format, type, width, height),
overridden_color_space(format.color_space),
overridden_gamma_curve(format.gamma_curve) {}
- virtual std::string effect_type_id() const { return "UnknownColorspaceInput"; }
+ virtual string effect_type_id() const { return "UnknownColorspaceInput"; }
void set_color_space(Colorspace colorspace) {
overridden_color_space = colorspace;
GammaCurve overridden_gamma_curve;
};
-TEST(EffectChainTester, HandlesInputChangingColorspace) {
+TEST(EffectChainTest, HandlesInputChangingColorspace) {
const int size = 4;
float data[size] = {
class BlueInput : public Input {
public:
BlueInput() { register_int("needs_mipmaps", &needs_mipmaps); }
- virtual std::string effect_type_id() const { return "IdentityEffect"; }
- std::string output_fragment_shader() { return read_file("blue.frag"); }
+ virtual string effect_type_id() const { return "IdentityEffect"; }
+ string output_fragment_shader() { return read_file("blue.frag"); }
virtual AlphaHandling alpha_handling() const { return OUTPUT_BLANK_ALPHA; }
virtual void finalize() {}
virtual bool can_output_linear_gamma() const { return true; }
class RewritingToBlueInput : public Input {
public:
RewritingToBlueInput() : blue_node(NULL) { register_int("needs_mipmaps", &needs_mipmaps); }
- virtual std::string effect_type_id() const { return "RewritingToBlueInput"; }
- std::string output_fragment_shader() { EXPECT_TRUE(false); return read_file("identity.frag"); }
+ virtual string effect_type_id() const { return "RewritingToBlueInput"; }
+ string output_fragment_shader() { EXPECT_TRUE(false); return read_file("identity.frag"); }
virtual void rewrite_graph(EffectChain *graph, Node *self) {
Node *blue_node = graph->add_node(new BlueInput());
graph->replace_receiver(self, blue_node);
class BlankAlphaPreservingEffect : public Effect {
public:
BlankAlphaPreservingEffect() {}
- virtual std::string effect_type_id() const { return "BlankAlphaPreservingEffect"; }
- std::string output_fragment_shader() { return read_file("identity.frag"); }
+ virtual string effect_type_id() const { return "BlankAlphaPreservingEffect"; }
+ string output_fragment_shader() { return read_file("identity.frag"); }
virtual AlphaHandling alpha_handling() const { return INPUT_PREMULTIPLIED_ALPHA_KEEP_BLANK; }
};
public:
MipmapNeedingEffect() {}
virtual bool needs_mipmaps() const { return true; }
- virtual std::string effect_type_id() const { return "MipmapNeedingEffect"; }
- std::string output_fragment_shader() { return read_file("mipmap_needing_effect.frag"); }
- void set_gl_state(GLuint glsl_program_num, const std::string& prefix, unsigned *sampler_num)
+
+ // To be allowed to mess with the sampler state.
+ virtual bool needs_texture_bounce() const { return true; }
+
+ virtual string effect_type_id() const { return "MipmapNeedingEffect"; }
+ string output_fragment_shader() { return read_file("mipmap_needing_effect.frag"); }
+ virtual void inform_added(EffectChain *chain) { this->chain = chain; }
+
+ void set_gl_state(GLuint glsl_program_num, const string& prefix, unsigned *sampler_num)
{
- glActiveTexture(GL_TEXTURE0);
+ Node *self = chain->find_node_for_effect(this);
+ glActiveTexture(chain->get_input_sampler(self, 0));
check_error();
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
check_error();
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
check_error();
}
+
+private:
+ EffectChain *chain;
};
TEST(EffectChainTest, MipmapGenerationWorks) {
expect_equal(expected_data, out_data, 4, 16);
}
-// An effect that multiplies with a constant. Used below.
-class MultiplyEffect : public Effect {
-public:
- MultiplyEffect() { register_float("factor", &factor); }
- virtual std::string effect_type_id() const { return "MultiplyEffect"; }
- std::string output_fragment_shader() { return read_file("multiply.frag"); }
- virtual AlphaHandling alpha_handling() const { return DONT_CARE_ALPHA_TYPE; }
-
-private:
- float factor;
-};
-
// An effect that adds its two inputs together. Used below.
class AddEffect : public Effect {
public:
AddEffect() {}
- virtual std::string effect_type_id() const { return "AddEffect"; }
- std::string output_fragment_shader() { return read_file("add.frag"); }
+ virtual string effect_type_id() const { return "AddEffect"; }
+ string output_fragment_shader() { return read_file("add.frag"); }
virtual unsigned num_inputs() const { return 2; }
virtual AlphaHandling alpha_handling() const { return DONT_CARE_ALPHA_TYPE; }
};
};
float out_data[2 * 2];
+ const float half[] = { 0.5f, 0.5f, 0.5f, 0.5f };
+ const float two[] = { 2.0f, 2.0f, 2.0f, 0.5f };
+
MultiplyEffect *mul_half = new MultiplyEffect();
- ASSERT_TRUE(mul_half->set_float("factor", 0.5f));
+ ASSERT_TRUE(mul_half->set_vec4("factor", half));
MultiplyEffect *mul_two = new MultiplyEffect();
- ASSERT_TRUE(mul_two->set_float("factor", 2.0f));
+ ASSERT_TRUE(mul_two->set_vec4("factor", two));
EffectChainTester tester(NULL, 2, 2);
};
float out_data[2 * 2];
+ const float half[] = { 0.5f, 0.5f, 0.5f, 0.5f };
+ const float two[] = { 2.0f, 2.0f, 2.0f, 0.5f };
+
MultiplyEffect *mul_half = new MultiplyEffect();
- ASSERT_TRUE(mul_half->set_float("factor", 0.5f));
+ ASSERT_TRUE(mul_half->set_vec4("factor", half));
MultiplyEffect *mul_two = new MultiplyEffect();
- ASSERT_TRUE(mul_two->set_float("factor", 2.0f));
+ ASSERT_TRUE(mul_two->set_vec4("factor", two));
BouncingIdentityEffect *bounce = new BouncingIdentityEffect();
input_width = width;
input_height = height;
}
- virtual std::string effect_type_id() const { return "SizeStoringEffect"; }
+ virtual string effect_type_id() const { return "SizeStoringEffect"; }
int input_width, input_height;
};
height(height),
virtual_width(virtual_width),
virtual_height(virtual_height) {}
- virtual std::string effect_type_id() const { return "VirtualResizeEffect"; }
- std::string output_fragment_shader() { return read_file("identity.frag"); }
+ virtual string effect_type_id() const { return "VirtualResizeEffect"; }
+ string output_fragment_shader() { return read_file("identity.frag"); }
virtual bool changes_output_size() const { return true; }
// since bilinear scaling from 2x2 → 3x3 → 2x2 is not very exact.
expect_equal(data, out_data, size, size);
}
+
+// Does not use EffectChainTest, so that it can construct an EffectChain without
+// a shared ResourcePool (which is also properly destroyed afterwards).
+// Also turns on debugging to test that code path.
+TEST(EffectChainTest, IdentityWithOwnPool) {
+ const int width = 3, height = 2;
+ float data[] = {
+ 0.0f, 0.25f, 0.3f,
+ 0.75f, 1.0f, 1.0f,
+ };
+ const float expected_data[] = {
+ 0.75f, 1.0f, 1.0f,
+ 0.0f, 0.25f, 0.3f,
+ };
+ float out_data[6], temp[6 * 4];
+
+ EffectChain chain(width, height);
+ movit_debug_level = MOVIT_DEBUG_ON;
+
+ ImageFormat format;
+ format.color_space = COLORSPACE_sRGB;
+ format.gamma_curve = GAMMA_LINEAR;
+
+ FlatInput *input = new FlatInput(format, FORMAT_GRAYSCALE, GL_FLOAT, width, height);
+ input->set_pixel_data(data);
+ chain.add_input(input);
+ chain.add_output(format, OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
+
+ GLuint texnum, fbo;
+ glGenTextures(1, &texnum);
+ check_error();
+ glBindTexture(GL_TEXTURE_2D, texnum);
+ check_error();
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA32F, width, height, 0, GL_RGBA, GL_FLOAT, NULL);
+ check_error();
+
+ glGenFramebuffers(1, &fbo);
+ check_error();
+ glBindFramebuffer(GL_FRAMEBUFFER, fbo);
+ check_error();
+ glFramebufferTexture2D(
+ GL_FRAMEBUFFER,
+ GL_COLOR_ATTACHMENT0,
+ GL_TEXTURE_2D,
+ texnum,
+ 0);
+ check_error();
+ glBindFramebuffer(GL_FRAMEBUFFER, 0);
+ check_error();
+
+ chain.finalize();
+
+ chain.render_to_fbo(fbo, width, height);
+
+ glBindFramebuffer(GL_FRAMEBUFFER, fbo);
+ check_error();
+ glReadPixels(0, 0, width, height, GL_RGBA, GL_FLOAT, temp);
+ check_error();
+ for (unsigned i = 0; i < 6; ++i) {
+ out_data[i] = temp[i * 4];
+ }
+
+ expect_equal(expected_data, out_data, width, height);
+
+ // Reset the debug status again.
+ movit_debug_level = MOVIT_DEBUG_OFF;
+}
+
+// A dummy effect whose only purpose is to test sprintf decimal behavior.
+class PrintfingBlueEffect : public Effect {
+public:
+ PrintfingBlueEffect() {}
+ virtual string effect_type_id() const { return "PrintfingBlueEffect"; }
+ string output_fragment_shader() {
+ stringstream ss;
+ ss.imbue(locale("C"));
+ ss.precision(8);
+ ss << "vec4 FUNCNAME(vec2 tc) { return vec4("
+ << 0.0f << ", " << 0.0f << ", "
+ << 0.5f << ", " << 1.0f << "); }\n";
+ return ss.str();
+ }
+};
+
+TEST(EffectChainTest, StringStreamLocalesWork) {
+ // An example of a locale with comma instead of period as decimal separator.
+ // Obviously, if you run on a machine without this locale available,
+ // the test will always succeed. Note that the OpenGL driver might call
+ // setlocale() behind-the-scenes, and that might corrupt the returned
+ // pointer, so we need to take our own copy of it here.
+ char *saved_locale = strdup(setlocale(LC_ALL, "nb_NO.UTF_8"));
+ float data[] = {
+ 0.0f, 0.0f, 0.0f, 0.0f,
+ };
+ float expected_data[] = {
+ 0.0f, 0.0f, 0.5f, 1.0f,
+ };
+ float out_data[4];
+ EffectChainTester tester(data, 1, 1, FORMAT_RGBA_PREMULTIPLIED_ALPHA, COLORSPACE_sRGB, GAMMA_LINEAR);
+ tester.get_chain()->add_effect(new PrintfingBlueEffect());
+ tester.run(out_data, GL_RGBA, COLORSPACE_sRGB, GAMMA_LINEAR);
+
+ expect_equal(expected_data, out_data, 4, 1);
+
+ setlocale(LC_ALL, saved_locale);
+ free(saved_locale);
+}
+
+
+} // namespace movit
projects / movit / blobdiff