Sep 19, 2024 · Oct 6, 2023 · Oct 6, 2023 · Oct 6, 2023 · Oct 6, 2023 · Sep 11, 2024
diff --git a/src/_backend_agg.cpp b/src/_backend_agg.cpp
      lastclippath(NULL),
      _fill_color(agg::rgba(1, 1, 1, 0))
 {
    if (dpi <= 0.0) {
        throw std::range_error("dpi must be positive");
    }

    if (width >= 1 << 16 || height >= 1 << 16) {
        throw std::range_error(
            "Image size of " + std::to_string(width) + "x" + std::to_string(height) +
            " pixels is too large. It must be less than 2^16 in each direction.");
    }

    unsigned stride(width * 4);

    pixBuffer = new agg::int8u[NUMBYTES];
diff --git a/src/_backend_agg.h b/src/_backend_agg.h
 #ifndef MPL_BACKEND_AGG_H
 #define MPL_BACKEND_AGG_H

 #include <pybind11/pybind11.h>

 #include <cmath>
 #include <algorithm>
 #include <functional>

 #include "agg_alpha_mask_u8.h"
 #include "agg_conv_curve.h"
 #include "array.h"
 #include "agg_workaround.h"

 namespace py = pybind11;

 /**********************************************************************/

 // a helper class to pass agg::buffer objects around.
    rendererBase.reset_clipping(true);
    if (angle != 0.0) {
        agg::rendering_buffer srcbuf(
                image.data(), (unsigned)image.shape(1),
                image.mutable_data(0, 0), (unsigned)image.shape(1),
                (unsigned)image.shape(0), (unsigned)image.shape(1));
        agg::pixfmt_gray8 pixf_img(srcbuf);

    bool has_clippath = render_clippath(gc.clippath.path, gc.clippath.trans, gc.snap_mode);

    agg::rendering_buffer buffer;
    buffer.attach(
        image.data(), (unsigned)image.shape(1), (unsigned)image.shape(0), -(int)image.shape(1) * 4);
    buffer.attach(image.mutable_data(0, 0, 0),
                  (unsigned)image.shape(1), (unsigned)image.shape(0),
                  -(int)image.shape(1) * 4);
    pixfmt pixf(buffer);

    if (has_clippath) {
                                                ColorArray &colors,
                                                agg::trans_affine &trans)
 {
    if (points.shape(0) && !check_trailing_shape(points, "points", 3, 2)) {
        throw py::error_already_set();
    }
    if (colors.shape(0) && !check_trailing_shape(colors, "colors", 3, 4)) {
        throw py::error_already_set();
    }
    if (points.shape(0) != colors.shape(0)) {
        throw py::value_error(
            "points and colors arrays must be the same length, got " +
            std::to_string(points.shape(0)) + " points and " +
            std::to_string(colors.shape(0)) + "colors");
    }

    theRasterizer.reset_clipping();
    rendererBase.reset_clipping(true);
    set_clipbox(gc.cliprect, theRasterizer);
    bool has_clippath = render_clippath(gc.clippath.path, gc.clippath.trans, gc.snap_mode);

    for (int i = 0; i < points.shape(0); ++i) {
 typename PointArray::sub_tpoint =points.subarray(i);
 typename ColorArray::sub_tcolor =colors.subarray(i);
 autopoint =std::bind(points, i, std::placeholders::_1, std::placeholders::_2);
 autocolor =std::bind(colors, i, std::placeholders::_1, std::placeholders::_2);

        _draw_gouraud_triangle(point, color, trans, has_clippath);
    }
Original file line number	Diff line number	Diff line change
Expand Up		@@ -29,6 +29,16 @@ RendererAgg::RendererAgg(unsigned int width, unsigned int height, double dpi)
		lastclippath(NULL),
		_fill_color(agg::rgba(1, 1, 1, 0))
		{
		if (dpi <= 0.0) {
		throw std::range_error("dpi must be positive");
		}

		if (width >= 1 << 16 \|\| height >= 1 << 16) {
		throw std::range_error(
		"Image size of " + std::to_string(width) + "x" + std::to_string(height) +
		" pixels is too large. It must be less than 2^16 in each direction.");
		}

		unsigned stride(width * 4);

		pixBuffer = new agg::int8u[NUMBYTES];
Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -6,8 +6,11 @@
		#ifndef MPL_BACKEND_AGG_H
		#define MPL_BACKEND_AGG_H

		#include <pybind11/pybind11.h>

		#include <cmath>
		#include <algorithm>
		#include <functional>

		#include "agg_alpha_mask_u8.h"
		#include "agg_conv_curve.h"
Expand DownExpand Up		@@ -40,6 +43,8 @@
		#include "array.h"
		#include "agg_workaround.h"

		namespace py = pybind11;

		/**********************************************************************/

		// a helper class to pass agg::buffer objects around.
Expand DownExpand Up		@@ -728,7 +733,7 @@
		rendererBase.reset_clipping(true);
		if (angle != 0.0) {
		agg::rendering_buffer srcbuf(
		image.data(), (unsigned)image.shape(1),
		image.mutable_data(0, 0), (unsigned)image.shape(1),
		(unsigned)image.shape(0), (unsigned)image.shape(1));
		agg::pixfmt_gray8 pixf_img(srcbuf);

Expand DownExpand Up		@@ -828,8 +833,9 @@
		bool has_clippath = render_clippath(gc.clippath.path, gc.clippath.trans, gc.snap_mode);

		agg::rendering_buffer buffer;
		buffer.attach(
		image.data(), (unsigned)image.shape(1), (unsigned)image.shape(0), -(int)image.shape(1) * 4);
		buffer.attach(image.mutable_data(0, 0, 0),
		(unsigned)image.shape(1), (unsigned)image.shape(0),
		-(int)image.shape(1) * 4);
		pixfmt pixf(buffer);

		if (has_clippath) {
Expand DownExpand Up		@@ -1226,14 +1232,27 @@
		ColorArray &colors,
		agg::trans_affine &trans)
		{
		if (points.shape(0) && !check_trailing_shape(points, "points", 3, 2)) {
		throw py::error_already_set();
		}
		if (colors.shape(0) && !check_trailing_shape(colors, "colors", 3, 4)) {
		throw py::error_already_set();
		}
		if (points.shape(0) != colors.shape(0)) {
		throw py::value_error(
		"points and colors arrays must be the same length, got " +
		std::to_string(points.shape(0)) + " points and " +
Check warning on line 1244 in src/_backend_agg.h View check run for this annotation Codecov/ codecov/patch src/_backend_agg.h#L1243-L1244 `Added lines #L1243 - L1244 were not covered by tests`
		std::to_string(colors.shape(0)) + "colors");
		}

		theRasterizer.reset_clipping();
		rendererBase.reset_clipping(true);
		set_clipbox(gc.cliprect, theRasterizer);
		bool has_clippath = render_clippath(gc.clippath.path, gc.clippath.trans, gc.snap_mode);

		for (int i = 0; i < points.shape(0); ++i) {
		typename PointArray::sub_tpoint =points.subarray(i);
		typename ColorArray::sub_tcolor =colors.subarray(i);
		autopoint =std::bind(points, i, std::placeholders::_1, std::placeholders::_2);
		autocolor =std::bind(colors, i, std::placeholders::_1, std::placeholders::_2);

		_draw_gouraud_triangle(point, color, trans, has_clippath);
		}
Expand Down